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USD291071S - Telephone line polarity tester - Google Patents

Telephone line polarity tester Download PDF

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Publication number
USD291071S
USD291071S US06/717,434 US71743485F USD291071S US D291071 S USD291071 S US D291071S US 71743485 F US71743485 F US 71743485F US D291071 S USD291071 S US D291071S
Authority
US
United States
Prior art keywords
telephone line
line polarity
polarity tester
tester
telephone
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
US06/717,434
Inventor
Randy J. Breil
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 US06/717,434 priority Critical patent/USD291071S/en
Application granted granted Critical
Publication of USD291071S publication Critical patent/USD291071S/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a left and top-front perspective view of a telephone line polarity tester showing my new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof.

Claims (1)

  1. The ornamental design for a telephone line polarity tester, as shown and described.
US06/717,434 1985-03-28 1985-03-28 Telephone line polarity tester Expired - Lifetime USD291071S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/717,434 USD291071S (en) 1985-03-28 1985-03-28 Telephone line polarity tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/717,434 USD291071S (en) 1985-03-28 1985-03-28 Telephone line polarity tester

Publications (1)

Publication Number Publication Date
USD291071S true USD291071S (en) 1987-07-28

Family

ID=70168810

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/717,434 Expired - Lifetime USD291071S (en) 1985-03-28 1985-03-28 Telephone line polarity tester

Country Status (1)

Country Link
US (1) USD291071S (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6361357B1 (en) 2000-04-13 2002-03-26 3Com Corporation Remotely illuminated electronic connector for improving viewing of status indicators
US6457992B2 (en) 1999-02-08 2002-10-01 3Com Corporation Visual feedback system for electronic device
US6483712B1 (en) 2000-03-20 2002-11-19 3Com Corporation Illuminating electrical jack system
US6724889B1 (en) 1999-11-01 2004-04-20 3Com Corporation Method and system for line status indicators using line side power
US20080120817A1 (en) * 2006-11-29 2008-05-29 Hsiao-Chi Lin Multi-functional shackle structure

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263550A (en) 1978-04-10 1981-04-21 Schweitzer Edmund O Jun Test point mounted circuit condition indicator
US4533864A (en) 1983-04-21 1985-08-06 Northern Telecom Limited Test instrument with flexibly connected head
US4533796A (en) 1984-01-30 1985-08-06 Engelmore Anthony R Rotatable electrical connector for telephone cord
US4564728A (en) 1984-04-13 1986-01-14 Comus International, Inc. Apparatus for testing a telephone line
US4600810A (en) 1984-09-07 1986-07-15 Amp Incorporated Telephone line tester
US4620070A (en) 1985-02-04 1986-10-28 Illinois Tool Works Inc. Telephone line tester
US4626633A (en) 1985-02-04 1986-12-02 Illinois Tool Works, Inc. In-line switched telephone line tester
USD288416S (en) 1984-04-13 1987-02-24 Comus International, Inc. Telephone line test light or similar apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263550A (en) 1978-04-10 1981-04-21 Schweitzer Edmund O Jun Test point mounted circuit condition indicator
US4533864A (en) 1983-04-21 1985-08-06 Northern Telecom Limited Test instrument with flexibly connected head
US4533796A (en) 1984-01-30 1985-08-06 Engelmore Anthony R Rotatable electrical connector for telephone cord
US4564728A (en) 1984-04-13 1986-01-14 Comus International, Inc. Apparatus for testing a telephone line
USD288416S (en) 1984-04-13 1987-02-24 Comus International, Inc. Telephone line test light or similar apparatus
US4600810A (en) 1984-09-07 1986-07-15 Amp Incorporated Telephone line tester
US4620070A (en) 1985-02-04 1986-10-28 Illinois Tool Works Inc. Telephone line tester
US4626633A (en) 1985-02-04 1986-12-02 Illinois Tool Works, Inc. In-line switched telephone line tester

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6457992B2 (en) 1999-02-08 2002-10-01 3Com Corporation Visual feedback system for electronic device
US6724889B1 (en) 1999-11-01 2004-04-20 3Com Corporation Method and system for line status indicators using line side power
US6483712B1 (en) 2000-03-20 2002-11-19 3Com Corporation Illuminating electrical jack system
US6361357B1 (en) 2000-04-13 2002-03-26 3Com Corporation Remotely illuminated electronic connector for improving viewing of status indicators
US20080120817A1 (en) * 2006-11-29 2008-05-29 Hsiao-Chi Lin Multi-functional shackle structure
US7713082B2 (en) * 2006-11-29 2010-05-11 Hsiao-Chi Lin Multi-functional shackle structure

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