Classifications: Documentary

Classifications: Documentary
313 to 336 of 1,338
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Image Not Available
Documentary
Samuel E. Sheppard
Patent- Electrodeposition of Organic Materials
April 13, 1926
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Photographic Light Sensitive Material & Process of Making Same
March 2, 1926
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Art of light sensitive photographic materials
March 2, 1926
Image Not Available
Documentary
Leon W. Eberlin
Patent- Process of Reducing Viscosity Charateristics of Nitrocellulose
February 9, 1926
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Process of Reducing Viscosity Characteristics of Nitrocellulos
February 2, 1926
Image Not Available
Documentary
Leon W. Eberlin
Patent- Fluorescent Screen
April 7, 1925
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Fluorescent Screen
April 7, 1925
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Acid fixing bath
January 6, 1925
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Electrodeposition of Rubber Coatings
December 4, 1923
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Cellulose ether composition
January 2, 1923
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Purifying and Washing Process
November 2, 1920
Image Not Available
Documentary
Samuel E. Sheppard
Patent- Colored photographic element & process for making same
January 7, 1919
Image Not Available
Documentary
Charles Harris Shaw
Patent- Photographic Developing Apparatus
May 23, 1905
Image Not Available
Documentary
Charles Harris Shaw
Patent- Photographic Developing Apparatus
January 3, 1905
Image Not Available
Documentary
Charles Harris Shaw
Patent- Photographic Film
September 16, 1902
Image Not Available
Documentary
Alfred P. Sharp
Patent- Photographic camera slide
March 8, 1887
Image Not Available
Documentary
Samuel C. Shaffner
Patent- Means For Recording Meter Readings
April 4, 1911
Image Not Available
Documentary
Camille A. Sentou
Patent- Loop Control Mechanism
April 28, 1931
Image Not Available
Documentary
Etienne Jacquet
Patent- Unwinder
January 8, 1924
Image Not Available
Documentary
Camille A. Sentou
Patent- Scraping Machine
October 23, 1923
Image Not Available
Documentary
Etienne Jacquet
Patent- Rewinder
December 5, 1922
Image Not Available
Documentary
Paul C. Seel
Patent- Process of Making Cellulose Ethers
July 7, 1931
Image Not Available
Documentary
Paul C. Seel
Patent- Method of Preparing Sound and Picture Films
June 24, 1930
Image Not Available
Documentary
Paul C. Seel
Patent- Combined humidifier and projector
June 10, 1930
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