Classifications: Documentary

Classifications: Documentary
961 to 984 of 1,338
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Patent- Enlarging camera
Documentary
Hugh Davis
Patent- Enlarging camera
March 18, 1919
Patent- Lamp hose for projection cameras
Documentary
Hugh Davis
Patent- Lamp hose for projection cameras
June 25, 1918
Patent- Folding camera
Documentary
Harry R. Darling
Patent- Folding camera
January 9, 1917
Patent- Tripod socket for camera beds
Documentary
Harry R. Darling
Patent- Tripod socket for camera beds
October 6, 1914
Patent- Ignition apparatus
Documentary
John Ickeringill Crabtree
Patent- Ignition apparatus
December 3, 1918
Patent- Tinting process and product thereof
Documentary
John Ickeringill Crabtree
Patent- Tinting process and product thereof
September 17, 1918
Patent- Flash powder
Documentary
John Ickeringill Crabtree
Patent- Flash powder
September 11, 1917
Patent- Apparatus for treating photographic film
Documentary
John Ickeringill Crabtree
Patent- Apparatus for treating photographic film
May 15, 1917
Patent- Method of Treating Photographic Film
Documentary
John Ickeringill Crabtree
Patent- Method of Treating Photographic Film
January 18, 1916
Patent- Ray filter
Documentary
Joseph Thacher Clarke
Patent- Ray filter
August 24, 1915
Patent- Focusing Device
Documentary
Joseph Thacher Clarke
Patent- Focusing Device
March 3, 1914
Patent- Photographic Negative
Documentary
Joseph Thacher Clarke
Patent- Photographic Negative
March 14, 1911
Patent- Photographic Film Package For Color Photography
Documentary
Joseph Thacher Clarke
Patent- Photographic Film Package For Color Photography
February 28, 1905
Patent- Photographic Film Spool
Documentary
Joseph Thacher Clarke
Patent- Photographic Film Spool
October 21, 1902
Patent- Method For The Dehydration of Formic Acid
Documentary
Donald F. Othmer
Patent- Method For The Dehydration of Formic Acid
October 6, 1931
Patent- Process of Esterifying Cellulose Materials With Fatty Acids
Documentary
Dr. Hans T. Clarke
Patent- Process of Esterifying Cellulose Materials With Fatty Acids
September 15, 1931
Patent- Recovery of Cellulose Acetate From Acetic Acid Solutions
Documentary
Dr. Hans T. Clarke
Patent- Recovery of Cellulose Acetate From Acetic Acid Solutions
September 15, 1931
Patent- Cellulose ester composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ester composition
June 9, 1931
Patent- Process of Removing Water From Aqueous Acetic Acid
Documentary
Dr. Hans T. Clarke
Patent- Process of Removing Water From Aqueous Acetic Acid
May 12, 1931
Patent- Photographic Sensitizer and Process For Making It
Documentary
Dr. Hans T. Clarke
Patent- Photographic Sensitizer and Process For Making It
May 12, 1931
Patent- Cellulose ether solvent and composition
Documentary
Stewart J. Carroll
Patent- Cellulose ether solvent and composition
October 10, 1922
Patent- Cellulose ether solvent and compositions
Documentary
Stewart J. Carroll
Patent- Cellulose ether solvent and compositions
September 12, 1922
Patent- Cellulose ether solvent and compositions
Documentary
Stewart J. Carroll
Patent- Cellulose ether solvent and compositions
August 8, 1922
Patent- Cellulose ether solvent and composition
Documentary
Stewart J. Carroll
Patent- Cellulose ether solvent and composition
April 4, 1922
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