Calculator keyboard module


FIG. 1 is a top plan view of a preferred embodiment of a calculator keyboard module showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D227671 July 1973 Yamamoto
3617661 November 1971 Nome et al.
3721778 March 1973 Seeger, Jr. et al.
3736397 May 1973 Pedersen
Patent History
Patent number: D266005
Type: Grant
Filed: May 18, 1979
Date of Patent: Aug 31, 1982
Assignee: Litton Business Systems, Inc. (Morris Plains, NJ)
Inventors: Myron Beitler (West Orange, NJ), John N. Johnston (North Plainfield, NJ)
Primary Examiner: Louis S. Zarfas
Attorneys: Michael H. Wallach, Robert F. Rotella
Application Number: 6/40,133
Current U.S. Class: With Keyboard (D18/7); Element Or Attachment (D18/12)
International Classification: D1801;