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Vision tester
D298457 Vision tester
Patent Drawings:Drawing: D298457-2    Drawing: D298457-3    Drawing: D298457-4    Drawing: D298457-5    Drawing: D298457-6    Drawing: D298457-7    
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(6 images)

Inventor: Minkin, et al.
Date Issued: November 8, 1988
Application: 06/822,114
Filed: January 24, 1986
Inventors: Minkin; Bonnie L. (Lawrence, KS)
Minkin; Neil (Lawrence, KS)
Assignee: Optical Technology Corporation (Lawrence, KS)
Primary Examiner: Burke; Wallace R.
Assistant Examiner: Reid; Stella M.
Attorney Or Agent: Hovey, Williams, Timmons & Collins
U.S. Class: D24/172
Field Of Search: D24/17; D24/1.1; 351/200; 351/205; 351/206; 351/209; 351/210; 351/211; 351/212; 351/214; 351/217; 351/221; 351/245; 351/246; 351/224
International Class:
U.S Patent Documents: D170296; 1990218; 2478662; 4279479
Foreign Patent Documents:
Other References:

Claim: The ornamental design for a vision tester, as shown.
Description: FIG. 1 is a perspective view of a vision tester showing our new design.

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof.

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