Code entry terminal for security access system

- Motorola, Inc.
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Description

FIG. 1 is a perspective view of our code entry terminal for security access system showing the front, one side and the top of our new design;

FIG. 2 is a side elevational view thereof; and

FIG. 3 is a front perspective view thereof with the keyboard in an open position.

Referenced Cited
U.S. Patent Documents
3493922 February 1970 Laas
Other references
  • Electrical Consultant, 1-2-1977, p. 57, Security Access Unit. Electronics, 12-11-1975, p. 122, Microprocessing Timer/Counter Sliding Keyboard.
Patent History
Patent number: D255899
Type: Grant
Filed: Jun 8, 1978
Date of Patent: Jul 15, 1980
Assignee: Motorola, Inc. (Schaumburg, IL)
Inventors: Joseph W. Karas (Phoenix, AZ), Robert F. Pfeifer (Phoenix, AZ), Robert Samson (Phoenix, AZ)
Primary Examiner: Susan J. Lucas
Attorney: Eugene A. Parsons
Application Number: 5/913,929
Classifications
Current U.S. Class: D14/42
International Classification: D1402;