Touch dial key pad speaker telephone for a "clean room" or the like

- Gai-Tronics
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Description

FIG. 1 is a front elevational view of a touch dial pad speaker telephone for a "clean room" or the like showing my new design; and,

FIG. 2 is a right side elevational view thereof, the left side elevational view, and the top and bottom plan views are identical to the right side elevational view thereof.

The broken line showing of environmental structure is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D238186 December 1975 Kramer et al.
D260889 September 22, 1981 McLean
D270053 August 9, 1983 Bosch
D272346 January 24, 1984 Kaczkos
D316549 April 30, 1991 Hompf
4439647 March 27, 1984 Calandrella et al.
4680790 July 14, 1987 Packard et al.
4817164 March 28, 1989 Bertignolli
4866764 September 12, 1989 Barker
Other references
  • Design News Reprint, Aug. 8, 1977; .COPYRGT.1977; Brady front switch panel; p. 3 and reverse side text & picture. "NEI DAC" Auteldac 600 Series Telephone, Dec. 15, 1990.
Patent History
Patent number: D331063
Type: Grant
Filed: Sep 20, 1990
Date of Patent: Nov 17, 1992
Assignee: Gai-Tronics (Reading, PA)
Inventor: Bernard B. Pasierb (Collegeville, PA)
Primary Examiner: Horace B. Fay, Jr.
Law Firm: Woodcock Washburn Kurtz Mackiewicz & Norris
Application Number: 7/585,374