Ophthalmic refractor

- R. H. Burton Company
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Description

FIG. 1 is a rear perspective view of the an ophthalmic refractor showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
4606624 August 19, 1986 Wood
4840479 June 20, 1989 Sims
4943162 July 24, 1990 Sims
Patent History
Patent number: D365149
Type: Grant
Filed: May 31, 1994
Date of Patent: Dec 12, 1995
Assignee: R. H. Burton Company (Grove City, OH)
Inventors: Roy H. Burton (Columbus, OH), David E. Wood (Grove City, OH)
Primary Examiner: Stella Reid
Law Firm: Mueller and Smith
Application Number: 0/23,654
Classifications
Current U.S. Class: Ophthalmic (44) (D24/172)