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US Patent: 3,490,834
Projector for Selectively Showing Slides or Film Strips
Patentee:
William H. Trow (exact or similar names) - Perinton, Monroe Count, NY

USPTO Classifications:
352/136, 352/224, 352/228, 353/68

Tool Categories:
photographic apparatus : projectors

Assignees:
Graflex, Inc. - Pittsford, Monroe County, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 17, 1967
Granted: Jan. 20, 1970

Patent Pictures:
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