Speedometer ratio checker

Description

FIG. 1 is a front elevation of a speedometer ratio checker showing my new design;

FIG. 2 is a right side elevation thereof;

FIG. 3 is a bottom plan view thereof, the opposite side being a mirror image;

FIG. 4 is a left side elevation thereof, and

FIG. 5 is a rear elevation thereof.

Referenced Cited
U.S. Patent Documents
D222909 February 1972 Stehl
D254297 February 26, 1980 Staiert et al.
670432 March 1901 Powers
3435657 April 1969 Weissman
Other references
  • Electric Tachometer Model S120, 7/71, front cover, bottom left.
Patent History
Patent number: D281311
Type: Grant
Filed: Sep 30, 1982
Date of Patent: Nov 12, 1985
Inventor: William C. Spate (Pontiac, MI)
Primary Examiner: Bernard Ansher
Assistant Examiner: Terry Pfeffer
Law Firm: Burton, Parker & Schramm
Application Number: 6/430,136
Classifications