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US Patent: 2,315,981
Filter Mount for Photographic Cameras
Patentee:
Harold T. Olson (exact or similar names) - Rochester, Monroe County, NY

USPTO Classifications:
285/402, 285/87, 396/531, 396/544

Tool Categories:
photographic apparatus : cameras : camera accessories

Assignees:
Folmer Graflex Corp. - Rochester, Monroe County, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 03, 1941
Granted: Apr. 06, 1943

Patent Pictures:
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