Classifications: Documentary

Classifications: Documentary
361 to 384 of 1,338
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Image Not Available
Documentary
Paul C. Seel
Patent- Antistatic photographic film
November 7, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Photographic Film
November 7, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Base for antistatic film & composition for making same
October 10, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose ether composition
September 12, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Base for antistatic film & composition for making same
May 9, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose ether solvent and composition
February 7, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose ether composition
February 7, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Process of Dehydrating Nitrocellulose & Reducing Fire Risk
November 29, 1921
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose nitrate composition and sheet
May 31, 1921
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose nitrate composition
May 24, 1921
Image Not Available
Documentary
Paul C. Seel
Patent- Photographic Film
March 8, 1921
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose acetate composition
June 8, 1920
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose nitrate composition
June 8, 1920
Image Not Available
Documentary
Paul C. Seel
Patent- Cellulose ester composition & method of making the same
June 8, 1920
Image Not Available
Documentary
Paul C. Seel
Patent- Plastic Composition & Method of Making The Same
October 8, 1918
Image Not Available
Documentary
John W. Scott Jr.
Patent- Motion Picture Apparatus
February 8, 1927
Image Not Available
Documentary
Richard Schuttauf
Patent- Film Pack
January 23, 1912
Image Not Available
Documentary
John C. Schulz
Patent- Picture Holding Device For Album Leaves
November 17, 1931
Image Not Available
Documentary
Charles William Schober
Patent- Camera
April 28, 1903
Image Not Available
Documentary
Franz Schleicher
Patent- Process For Dehydrating Vapors Having Acetic Anhydride & Water
July 21, 1931
Image Not Available
Documentary
Jacob Schaub
Patent- Photographic Plate Holder
May 10, 1898
Image Not Available
Documentary
Howard A. Sauer
Patent- Film Pack Construction
September 15, 1931
Image Not Available
Documentary
Otto Sandvik
Patent- Method and Apparatus For Sound Reproduction
July 7, 1931
Image Not Available
Documentary
Alfred A. Ruttan
Patent- Compartment can
June 5, 1928
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