Lens testing instrument

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Description

FIG. 1 is a right side elevational view showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front and side perspective view thereof.

Referenced Cited
U.S. Patent Documents
D150412 August 1948 Gordon
D246987 January 17, 1978 Hawkins
D253909 January 8, 1980 Armbruster
2640392 June 1953 Freeman
2683392 July 1954 Ellis
3002285 October 1961 Wright
Other references
  • American Optical Catalog, Jul./1981, p. 1.
Patent History
Patent number: D325782
Type: Grant
Filed: Jun 23, 1989
Date of Patent: Apr 28, 1992
Assignee: Essilor International (Compagnie General d'Optique) (Creteil)
Inventor: Francois Elie (Paris)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Young & Thompson
Application Number: 7/370,564