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USD351858S - Ruler teaching apparatus - Google Patents

Ruler teaching apparatus Download PDF

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Publication number
USD351858S
USD351858S US29/005,388 US538893F USD351858S US D351858 S USD351858 S US D351858S US 538893 F US538893 F US 538893F US D351858 S USD351858 S US D351858S
Authority
US
United States
Prior art keywords
teaching apparatus
ruler
ruler teaching
present
view
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US29/005,388
Inventor
John J. Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US29/005,388 priority Critical patent/USD351858S/en
Application granted granted Critical
Publication of USD351858S publication Critical patent/USD351858S/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a top perspective view of a ruler teaching apparatus showing my new design;
FIG. 2 is a front elevational view of the ruler teaching apparatus according to the present invention;
FIG. 3 is a rear elevational view of the ruler teaching apparatus according to the present invention;
FIG. 4 is a top plan view of the ruler teaching apparatus according to the present invention;
FIG. 5 is a bottom plan view of the ruler teaching apparatus according to the present invention;
FIG. 6 is a left side elevational view of the ruler teaching apparatus according to the present invention; and,
FIG. 7 is a right side elevational view of the ruler teaching apparatus according to the present invention.

Claims (1)

  1. The ornamental design of a ruler teaching apparatus, as shown and described.
US29/005,388 1993-03-03 1993-03-03 Ruler teaching apparatus Expired - Lifetime USD351858S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29/005,388 USD351858S (en) 1993-03-03 1993-03-03 Ruler teaching apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29/005,388 USD351858S (en) 1993-03-03 1993-03-03 Ruler teaching apparatus

Publications (1)

Publication Number Publication Date
USD351858S true USD351858S (en) 1994-10-25

Family

ID=70856619

Family Applications (1)

Application Number Title Priority Date Filing Date
US29/005,388 Expired - Lifetime USD351858S (en) 1993-03-03 1993-03-03 Ruler teaching apparatus

Country Status (1)

Country Link
US (1) USD351858S (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD372432S (en) 1995-02-09 1996-08-06 Kyoto Measuring Instruments Corp. Cutter with ruler
USD1079504S1 (en) * 2022-04-11 2025-06-17 Mark E Sudberry Gauge tape with horizontal markings

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US703208A (en) 1901-11-06 1902-06-24 Charles Lawrence Flexible ruler.
US747380A (en) 1903-04-02 1903-12-22 James Francis Cooke Ruler.
US1659739A (en) 1926-12-23 1928-02-21 Arthur L Kuhlman Recording rule
US1699847A (en) 1927-08-10 1929-01-22 Arthur L Kuhlman Rule
US1888305A (en) 1930-09-06 1932-11-22 Berger Emerick Vernier scale guard measuring device
US2291552A (en) 1942-02-19 1942-07-28 Milton Aronauer Ruler
US2402658A (en) 1943-11-03 1946-06-25 Stephen W Nedela Machine guide attachment for scales
US2422745A (en) 1945-02-14 1947-06-24 Clarence S Ost Proportional ruler
US2456676A (en) 1947-02-21 1948-12-21 William C Chowns Slide indicator rule
US3258844A (en) 1964-03-27 1966-07-05 Warren L Godman Dividing device
US3465453A (en) 1967-09-14 1969-09-09 St Regis Paper Co Mathematical comparison device
GB1226055A (en) 1968-10-18 1971-03-24
US3837569A (en) 1973-05-07 1974-09-24 Borden Inc Metric conversion ruler
US3949491A (en) 1973-10-11 1976-04-13 James Richard Harte Mathematical teaching aid
US4144657A (en) 1977-09-30 1979-03-20 Dumovich Matt J Teaching aid for mathematics and number systems
USD288538S (en) 1984-08-13 1987-03-03 Cabaniss Iii Weldon B Template
USD290397S (en) 1984-05-21 1987-06-16 Alternate Resources Limited Sliding scale device for medical diagnostic purposes
USD339305S (en) 1992-01-02 1993-09-14 Klein Milton L Page and line finder

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US703208A (en) 1901-11-06 1902-06-24 Charles Lawrence Flexible ruler.
US747380A (en) 1903-04-02 1903-12-22 James Francis Cooke Ruler.
US1659739A (en) 1926-12-23 1928-02-21 Arthur L Kuhlman Recording rule
US1699847A (en) 1927-08-10 1929-01-22 Arthur L Kuhlman Rule
US1888305A (en) 1930-09-06 1932-11-22 Berger Emerick Vernier scale guard measuring device
US2291552A (en) 1942-02-19 1942-07-28 Milton Aronauer Ruler
US2402658A (en) 1943-11-03 1946-06-25 Stephen W Nedela Machine guide attachment for scales
US2422745A (en) 1945-02-14 1947-06-24 Clarence S Ost Proportional ruler
US2456676A (en) 1947-02-21 1948-12-21 William C Chowns Slide indicator rule
US3258844A (en) 1964-03-27 1966-07-05 Warren L Godman Dividing device
US3465453A (en) 1967-09-14 1969-09-09 St Regis Paper Co Mathematical comparison device
GB1226055A (en) 1968-10-18 1971-03-24
US3837569A (en) 1973-05-07 1974-09-24 Borden Inc Metric conversion ruler
US3949491A (en) 1973-10-11 1976-04-13 James Richard Harte Mathematical teaching aid
US4144657A (en) 1977-09-30 1979-03-20 Dumovich Matt J Teaching aid for mathematics and number systems
USD290397S (en) 1984-05-21 1987-06-16 Alternate Resources Limited Sliding scale device for medical diagnostic purposes
USD288538S (en) 1984-08-13 1987-03-03 Cabaniss Iii Weldon B Template
USD339305S (en) 1992-01-02 1993-09-14 Klein Milton L Page and line finder

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Cenco Educational Catalog, 1969, p. 1, Element #72695.
Welch Physics Digest, Apr. 1951 p. 27 Vernier Caliper on top of page.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD372432S (en) 1995-02-09 1996-08-06 Kyoto Measuring Instruments Corp. Cutter with ruler
USD1079504S1 (en) * 2022-04-11 2025-06-17 Mark E Sudberry Gauge tape with horizontal markings

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