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US Patent: 1,954,917
Means to prevent Double Exposures in Using Plate or Film Holders for Cameras
Patentee: William E. Burnell (exact or similar names) - Penn Yan, Yates County, NY USPTO Classifications: 396/522 Tool Categories: photographic apparatus : film and plate holders Assignees: None Manufacturer: Folmer Graflex Corp. - Rochester, Monroe County, NY Witnesses: none listed	Patent Dates: Applied: Sep. 03, 1932 Granted: Apr. 17, 1934 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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