Double viewer cartridge

- GAF Corporation
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Description

FIG. 1 is a front, top, and right side perspective view of a double viewer cartridge showing my new design;

FIG. 2 is a front elevational view thereof, the rear view being identical to the side shown;

FIG. 3 is a right side view thereof, the left side view being identical to the side shown;

FIG. 4 is a top view thereof; and

FIG. 5 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D221999 September 1971 Steinberg et al.
3425531 February 1969 Fuld
3537780 November 1970 Angenieux
Patent History
Patent number: D257770
Type: Grant
Filed: Sep 22, 1978
Date of Patent: Jan 6, 1981
Assignee: GAF Corporation (New York, NY)
Inventor: Donald I. Loofbourow (Canby, OR)
Primary Examiner: Peter Feldman
Attorney: Walter C. Kehm
Application Number: 5/944,908
Classifications
Current U.S. Class: D14/11; 242/712
International Classification: D1401;