FIG. 1 is a perspective view of a keyboard showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a sectional view taken along line 4--4 in FIG. 2.

Referenced Cited
U.S. Patent Documents
D245109 July 19, 1977 Yoshioka
1444680 February 1923 Gilfoy
4029915 June 14, 1977 Ojima
Other references
  • The Office, Mar. 1965, p. 106-left Keyboard on Burroughs J700. Popular Science, Sep. 1977, p. 26-T.I. Data Clip Calculator at center right.
Patent History
Patent number: D256252
Type: Grant
Filed: Dec 13, 1978
Date of Patent: Aug 5, 1980
Assignee: Essex Transducers Corporation (Carpinteria, CA)
Inventor: Michael D. Burridge (Santa Barbara, CA)
Primary Examiner: Louis S. Zarfas
Attorney: Anthony J. Criso
Application Number: 5/968,947
Current U.S. Class: Element Or Attachment (D18/12); With Keyboard (D18/7)
International Classification: D1801;