Corrosion test meter

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Description

FIG. 1 is a top and right front perspective view of a corrosion test meter showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D211830 July 1968 Hoyer
D248457 July 11, 1978 Cullinane
D250178 November 7, 1978 Maxwell
Other references
  • Design News, 5/12/65, p. 48, Electronic Hygrometer at top-right.
Patent History
Patent number: D257131
Type: Grant
Filed: Jan 8, 1979
Date of Patent: Sep 30, 1980
Inventor: Robert W. Ajeman (Ventura, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Matthew L. Ajeman
Application Number: 6/2,012
Classifications
Current U.S. Class: Chemical (12) (D10/81); Provided With Handle, Or Hand-held (D10/78)
International Classification: D1004;