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Image Not Available
Transparency
John G. Capstaff
Dr. Hans T. Clarke
ca. 1914-1917
Image Not Available
Transparency
John G. Capstaff
Dr. Hans T. Clarke
ca. 1914-1917
Thanksgiving Dinner, Kodak Park Lunch Club
Photograph
William F. Folmer
Thanksgiving Dinner, Kodak Park Lunch Club
November 27, 1918
Joseph Thacher Clarke and his family
Photograph
Joseph Thacher Clarke
Joseph Thacher Clarke and his family
ca. 1905
Patent- Process Of Preparing Halogen Substituted Fatty Acid Anhydrides
Documentary
Dr. Hans T. Clarke
Patent- Process Of Preparing Halogen Substituted Fatty Acid Anhydrides
November 8, 1927
Patent- Cellulose esters of fatty acids and process of making same
Documentary
Carl J. Malm
Patent- Cellulose esters of fatty acids and process of making same
May 8, 1928
Cast of Out of the Fog
Photograph
Unidentified
Cast of Out of the Fog
1922
Joseph Thacher Clarke with sons (Eric and Hans)
Photograph
Joseph Thacher Clarke
Joseph Thacher Clarke with sons (Eric and Hans)
ca. 1905
Patent- Cellulose ether composition and method for making the same
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition and method for making the same
November 2, 1920
Patent- Cellulose nitrate composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose nitrate composition
March 8, 1921
Patent- Light filter
Documentary
Dr. Hans T. Clarke
Patent- Light filter
February 4, 1919
Patent- Cellulose ester composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ester composition
July 15, 1919
Patent- Cellulose nitrate composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose nitrate composition
July 15, 1919
Patent- Cellulose ester composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ester composition
March 8, 1921
Patent- Cellulose ether composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition
November 1, 1921
Patent- Cellulose ester composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ester composition
November 21, 1921
Patent- Cellulose ether composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition
February 7, 1922
Patent- Cellulose ether composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition
February 7, 1922
Patent- Process of manufacturing acetyl monomethyl aryl amines
Documentary
Dr. Hans T. Clarke
Patent- Process of manufacturing acetyl monomethyl aryl amines
April 4, 1922
Patent- Process of manufacturing certain acetyl methyl amines
Documentary
Dr. Hans T. Clarke
Patent- Process of manufacturing certain acetyl methyl amines
November 7, 1922
Patent- Nitrocellulose composition
Documentary
Dr. Hans T. Clarke
Patent- Nitrocellulose composition
February 6, 1923
Patent- Cellulose acetate composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose acetate composition
August 11, 1925
Patent- Cellulose esters containing nitro groups and halogen-substituted acyl groups
Documentary
Dr. Hans T. Clarke
Patent- Cellulose esters containing nitro groups and halogen-substituted acyl groups
November 6, 1928
Patent- Process of making cellulose aceto esters cont. acyl grps.
Documentary
Carl J. Malm
Patent- Process of making cellulose aceto esters cont. acyl grps.
January 8, 1929
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