Line protector distribution board for telephone exchange systems
Description
FIG. 1 is a perspective view of a line protector distribution board for telephone exchange systems;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a right side elevational view thereof.
Referenced Cited
U.S. Patent Documents
D309291 | July 17, 1990 | Wharton |
D314557 | February 12, 1991 | Fesmire et al. |
3949276 | April 6, 1976 | Reuting |
4420792 | December 13, 1983 | Hegner et al. |
4698727 | October 6, 1987 | Hibbert et al. |
4796150 | January 3, 1989 | Dickey et al. |
5057964 | October 15, 1991 | Bender et al. |
5150271 | September 22, 1992 | Unterweger et al. |
Patent History
Patent number: D338767
Type: Grant
Filed: Jun 2, 1992
Date of Patent: Aug 24, 1993
Inventor: Kin L. Hsieh (Tucheng Hsiang, Taipei Hsien)
Primary Examiner: Alan P. Douglas
Assistant Examiner: J. H. Musgrove
Law Firm: Poms, Smith, Lande & Rose
Application Number: 7/892,369
Type: Grant
Filed: Jun 2, 1992
Date of Patent: Aug 24, 1993
Inventor: Kin L. Hsieh (Tucheng Hsiang, Taipei Hsien)
Primary Examiner: Alan P. Douglas
Assistant Examiner: J. H. Musgrove
Law Firm: Poms, Smith, Lande & Rose
Application Number: 7/892,369
Classifications