Visual acuity meter for measuring the potential visual acuity of the eye of a patient
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Description
FIG. 1 is a perspective view of a visual acuity meter for measuring the potential visual acuity of the eye of a patient showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right side elevation view thereof; and
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a left side elevation view thereof, on an enlarged scale.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
3532418 | October 1970 | Schainholz et al. |
3623799 | November 1971 | Millodot |
2616139 | October 1977 | DEX |
Patent History
Patent number: D281533
Type: Grant
Filed: Aug 25, 1982
Date of Patent: Nov 26, 1985
Assignee: Mentor O & O, Inc. (Hingham, MA)
Inventor: Richard Seager (Mystic, CT)
Primary Examiner: James M. Gandy
Law Firm: Morse, Altman & Dacey
Application Number: 6/411,564
Type: Grant
Filed: Aug 25, 1982
Date of Patent: Nov 26, 1985
Assignee: Mentor O & O, Inc. (Hingham, MA)
Inventor: Richard Seager (Mystic, CT)
Primary Examiner: James M. Gandy
Law Firm: Morse, Altman & Dacey
Application Number: 6/411,564
Classifications
Current U.S. Class:
D24/17;
Optical Article Not Elsewhere Specified (D16/130)