Classifications: Documentary

Classifications: Documentary
721 to 744 of 1,338
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Image Not Available
Documentary
Charles E. Hutchings
Patent- Photographic camera
February 10, 1925
Image Not Available
Documentary
Charles E. Hutchings
Patent- Camera bellows
July 8, 1924
Image Not Available
Documentary
Charles E. Hutchings
Patent- Photographic plate holder
May 31, 1921
Image Not Available
Documentary
Charles E. Hutchings
Patent- Lens carriage securing means
March 15, 1904
Image Not Available
Documentary
Charles E. Hutchings
Patent- Camera back
October 20, 1903
Image Not Available
Documentary
Charles E. Hutchings
Patent- Adaptors for containing flat packages of film
May 19, 1903
Image Not Available
Documentary
Charles E. Hutchings
Patent- Flat form photographic film package
May 19, 1903
Image Not Available
Documentary
Charles E. Hutchings
Patent- Running bridge for extension front photographic cameras
October 28, 1902
Image Not Available
Documentary
Charles E. Hutchings
Patent- Swing back photographic camera
October 28, 1902
Image Not Available
Documentary
Charles E. Hutchings
Patent- Magazine Camera
July 22, 1902
Image Not Available
Documentary
Charles E. Hutchings
Patent- Photographic camera
July 8, 1902
Image Not Available
Documentary
Charles E. Hutchings
Patent- Camera
July 8, 1902
Image Not Available
Documentary
David M. Hurlburt
Patent- Photographic exposure mechanism
April 1, 1919
Image Not Available
Documentary
David H. Houston
Patent- Roll holding photographic camera
September 25, 1894
Image Not Available
Documentary
David H. Houston
Patent- Folding roll-holding camera
September 25, 1894
Image Not Available
Documentary
David H. Houston
Patent- Photographic apparatus
December 28, 1886
Image Not Available
Documentary
David H. Houston
Patent- Photographic apparatus
October 11, 1881
Image Not Available
Documentary
Roy S. Hopkins
Patent- Mechanism for recording data in films
December 15, 1931
Image Not Available
Documentary
Roy S. Hopkins
Patent- Photographic printing machine
November 10, 1931
Image Not Available
Documentary
Roy S. Hopkins
Patent- Indicating device for document photographing apparatus
October 6, 1931
Image Not Available
Documentary
Roy S. Hopkins
Patent- Photographic printing machine
September 15, 1931
Image Not Available
Documentary
Roy S. Hopkins
Patent- Platen For Photographic Printing Machines
June 9, 1931
Image Not Available
Documentary
Roy S. Hopkins
Patent- Adjustable light sources for photographic printing machines
May 12, 1931
Image Not Available
Documentary
Roy S. Hopkins
Patent- Photographic Printing and Vignetting Apparatus
April 7, 1931
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