USD291071S - Telephone line polarity tester - Google Patents
Telephone line polarity tester Download PDFInfo
- 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
Links
Images
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)
- The ornamental design for a telephone line polarity tester, as shown and described.
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)
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 |
-
1985
- 1985-03-28 US US06/717,434 patent/USD291071S/en not_active Expired - Lifetime
Cited By (6)
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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