Combination tonometer and placido disk

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Description

FIG. 1 is a top perspective view of a combination tonometer and placido disk showing my new design, and

FIG. 2 is a bottom perspective view thereof.

Referenced Cited
U.S. Patent Documents
2314514 March 1943 Parsons
3977237 August 31, 1976 Tesi
4628938 December 16, 1986 Lee
Patent History
Patent number: D298654
Type: Grant
Filed: Apr 10, 1986
Date of Patent: Nov 22, 1988
Assignee: Lee T. Nordan (La Jolla, CA)
Inventor: Loren G. Hendricks (San Diego, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Law Firm: Charmasson & Holz
Application Number: 6/850,012
Classifications
Current U.S. Class: D24/17