Optical viewfinder

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Description

FIG. 1 is a perspective view of an optical viewfinder showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof; and

FIG. 4 is a rear elevational view.

Referenced Cited
U.S. Patent Documents
1682139 August 1928 Mitchell
2574072 November 1951 Updegraff
3839725 October 1974 Koppensteiner
Other references
  • Burke & James Inc. Photographic Equipment Catalog, p. 46, "Zoom Type" Viewfinder.
Patent History
Patent number: D274625
Type: Grant
Filed: Feb 1, 1978
Date of Patent: Jul 10, 1984
Assignee: Alan Gordon Enterprises, Inc. (No. Hollywood, CA)
Inventor: Grant Loucks (Burbank, CA)
Primary Examiner: Catherine E. Kemper
Law Firm: Fulwider, Patton, Rieber, Lee & Utecht
Application Number: 5/874,569
Classifications
Current U.S. Class: D16/38; Lens (D16/101)