Explosion resistant, wall mount telephone set

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Description

FIG. 1 is a front, top and right side perspective view of an explosion resistant, wall mount telephone set showing my new design;

FIG. 2 is a front elevational view thereof;

FIGS. 3 and 4 are respectively right and left side elevational views thereof;

FIG. 5 is a rear elevational view thereof; and

FIGS. 6 and 7 are respectively top and bottom plan views thereof.

Referenced Cited
U.S. Patent Documents
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Other references
  • 1978 Sweets, vol. 10.9/ph:Durophonic Telephone Enclosure; Model PC 5 W.C.
Patent History
Patent number: D303525
Type: Grant
Filed: Feb 22, 1988
Date of Patent: Sep 19, 1989
Assignee: Newco Safety Tel Inc. (Calgary)
Inventor: Ronald J. Stewart (Calgary)
Primary Examiner: Horace B. Fay, Jr.
Attorney: William R. Hinds
Application Number: 7/159,027