Demonstration device

- Codman & Shurtleff Inc.
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Description

FIG. 1 is a top, front and right side perspective view of a demonstration device showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is an exploded top, front and right side perspective view thereof.

Referenced Cited
U.S. Patent Documents
D216364 December 1969 Benz
3579858 May 1971 Bentov
3775865 December 1973 Rowan
4058910 November 22, 1977 Funk
Patent History
Patent number: D292932
Type: Grant
Filed: Nov 13, 1984
Date of Patent: Nov 24, 1987
Assignee: Codman & Shurtleff Inc. (Randolph, MA)
Inventor: Joseph A. McGinley (Colchester, CT)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Attorney: Donal B. Tobin
Application Number: 6/670,512