Tonometer

- Canon
Description

FIG. 1 is a front elevational view of a tonometer showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

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

FIG. 7 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D163942 July 1951 Gerhardt
D341541 November 23, 1993 Ichiyoshi
5190042 March 2, 1993 Hock
Patent History
Patent number: D348224
Type: Grant
Filed: Apr 15, 1993
Date of Patent: Jun 28, 1994
Assignee: Canon Kabushiki Kaisha (Tokyo)
Inventor: Hideki Hayashi (Tokyo)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Law Firm: Fitzpatrick, Cella, Harper & Scinto
Application Number: 0/7,073