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
Classifications