Keyboard for programmable controller

- Sharp Corporation
Description

FIG. 1 is a perspective view of the new keyboard for programmable controller showing the new design;

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 right side elevational view thereof, and

FIG. 7 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D280406 September 3, 1985 Walker
D303521 September 19, 1989 Savio et al.
D305126 December 19, 1989 Yamaura et al.
4324976 April 13, 1982 Lapeyre
4855746 August 8, 1989 Stacy
Patent History
Patent number: D310660
Type: Grant
Filed: Feb 6, 1989
Date of Patent: Sep 18, 1990
Assignee: Sharp Corporation (Osaka)
Inventor: Katsuhiro Ishida (Osaka)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Freda S. Nunn
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 7/307,582
Classifications
Current U.S. Class: D14/100