Sine gauge

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Description

FIG. 1 is a top plan view of a sine gauge showing my new design.

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image thereof;

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
1179551 April 1916 Muller
2494715 April 1944 Mathews
3345754 October 1965 Lipkins
4389785 June 28, 1983 Goldsmith et al.
Patent History
Patent number: D303356
Type: Grant
Filed: Feb 24, 1987
Date of Patent: Sep 12, 1989
Inventor: Larry D. Couch (San Bernardino, CA)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Attorney: John H. Crowe
Application Number: 7/17,796