USD316978S - Ruler/mathematical aid - Google Patents
Ruler/mathematical aid Download PDFInfo
- Publication number
- USD316978S USD316978S US07/130,671 US13067187F USD316978S US D316978 S USD316978 S US D316978S US 13067187 F US13067187 F US 13067187F US D316978 S USD316978 S US D316978S
- Authority
- US
- United States
- Prior art keywords
- ruler
- mathematical aid
- mathematical
- aid
- 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
Links
Images
Description
FIG. 1 is a top plan view of a ruler/mathematical aid showing our new design;
FIG. 2 is a right side elevational view, the left side elevational view being identical;
FIG. 3 is a front elevational view, the rear elevational view being identical; and
FIG. 4 is a bottom plan view thereof.
FIG. 5 shows the bottom plan view with cutout shapes thereon which is identical to the top plan view in FIG. 1 and is flat and unornamented.
Claims (1)
- The ornamental design for a ruler/mathematical aid, as shown.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2036/87 | 1987-06-12 | ||
| AU198702036F AU99132S (en) | 1987-06-12 | 1987-06-12 | Ruler/mathematical aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USD316978S true USD316978S (en) | 1991-05-21 |
Family
ID=66387890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US07/130,671 Expired - Lifetime USD316978S (en) | 1987-06-12 | 1987-12-09 | Ruler/mathematical aid |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | USD316978S (en) |
| AU (1) | AU99132S (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD447965S1 (en) | 2000-11-30 | 2001-09-18 | Jorge A. Groiso | Tool for measuring angles at bone joints |
| USD781942S1 (en) * | 2011-11-18 | 2017-03-21 | Toyo Tanso Co., Ltd. | Graphite sheet for protecting crucible |
| USD891413S1 (en) * | 2016-11-21 | 2020-07-28 | Government Of The United States As Represented By The Secretary Of The Air Force | Cell phone case for orienteering and ground navigation |
| US12510343B2 (en) | 2023-05-05 | 2025-12-30 | James Wesley Way | Decimal measurement scale |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU114750B2 (en) | 1940-12-21 | 1942-03-05 | vijok Kormos Xa. | Transparent ruler for solving geometrical problems |
| GB649815A (en) | 1948-12-29 | 1951-01-31 | Kelvin & Hughes Ltd | Improvements in or relating to chart table protractor instruments and similar devices |
| US4190960A (en) | 1977-08-23 | 1980-03-04 | Warner Louis A | Plotter |
-
1987
- 1987-06-12 AU AU198702036F patent/AU99132S/en not_active Expired
- 1987-12-09 US US07/130,671 patent/USD316978S/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU114750B2 (en) | 1940-12-21 | 1942-03-05 | vijok Kormos Xa. | Transparent ruler for solving geometrical problems |
| GB649815A (en) | 1948-12-29 | 1951-01-31 | Kelvin & Hughes Ltd | Improvements in or relating to chart table protractor instruments and similar devices |
| US4190960A (en) | 1977-08-23 | 1980-03-04 | Warner Louis A | Plotter |
Non-Patent Citations (2)
| Title |
|---|
| Dietzgen, Protractor Scale and Rules, 1946, p. 275. |
| Visual Systems, Scales, 86/87, pp. 196, 195. |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD447965S1 (en) | 2000-11-30 | 2001-09-18 | Jorge A. Groiso | Tool for measuring angles at bone joints |
| USD781942S1 (en) * | 2011-11-18 | 2017-03-21 | Toyo Tanso Co., Ltd. | Graphite sheet for protecting crucible |
| USD891413S1 (en) * | 2016-11-21 | 2020-07-28 | Government Of The United States As Represented By The Secretary Of The Air Force | Cell phone case for orienteering and ground navigation |
| US12510343B2 (en) | 2023-05-05 | 2025-12-30 | James Wesley Way | Decimal measurement scale |
Also Published As
| Publication number | Publication date |
|---|---|
| AU99132S (en) | 1988-01-07 |
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