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25 to 48 of 49 results for "hans t. clarke"
Patent - Mixed cellulose organic esters & process for making
Documentary
Dr. Hans T. Clarke
1929/03/05
1997.2003.0001
Patent - Process of making a ketene.
Documentary
C. E. Waring
1929/08/06
1997.2006.0001
Patent- Process  Esterifying Hydrated Cellulose With Lower Fatty Acids
Documentary
Dr. Hans T. Clarke
1928/05/08
1997.1994.0001
Patent - Cellulose Esters
Documentary
Carl J. Malm
1928/10/09
1997.1997.0001
Patent - Nitrocellulose composition
Documentary
Dr. Hans T. Clarke
1923/02/06
1997.1969.0001
Patent- Process Of Preparing Pentaerythritol Tetraacetate
Documentary
Dr. Hans T. Clarke
1926/05/04
1997.1991.0001
Patent- Cellulose Ester Composition
Documentary
Dr. Hans T. Clarke
1931/06/09
1997.2646.0001
Patent - Cellulose ester composition
Documentary
Dr. Hans T. Clarke
1921/03/08
1997.1934.0001
Patent - Cellulose ether composition
Documentary
Dr. Hans T. Clarke
1922/02/07
1997.1965.0001
Patent - Cellulose esters cont. nitro grps & halogen-subst.acyl grps.
Documentary
Dr. Hans T. Clarke
1928/11/6
1997.1999.0001
Patent - Method of making 2:4-Dimethyl-6-Ethoxyquinoline.
Documentary
E. R. Taylor
1929/02/05
1997.2002.0001
Patent - Process of making organic esters of cellulose.
Documentary
Dr. Hans T. Clarke
1929/06/11
1997.2005.0001
Patent- Process Esterifying Mercerized Cellulose With Lower Fatty Acid
Documentary
Dr. Hans T. Clarke
1928/10/09
1997.1996.0001
Patent- Process of Esterifying Cellulose Materials With Fatty Acids
Documentary
Dr. Hans T. Clarke
1931/09/15
1997.2648.0001
Joseph Thacher Clarke and his family
Photograph
Joseph Thacher Clarke
ca. 1905
1998.0425.0001
Patent - Process of manufacturing certain acetyl methyl amines.
Documentary
Dr. Hans T. Clarke
1922/11/07
1997.1968.0001
Patent - Process for making unsaturated acyl cellulose esters.
Documentary
Carl J. Malm
1929/12/10
1997.2008.0001
Cast of Out of the Fog
Photograph
Unidentified
1922
2009.0519.0001
Thanksgiving Dinner, Kodak Park Lunch Club
Photograph
William F. Folmer
November 27, 1918
1969.0174.0020
Joseph Thacher Clarke with sons (Eric and Hans)
Photograph
Joseph Thacher Clarke
ca. 1905
1998.0428.0001
Patent - Light filter
Documentary
Dr. Hans T. Clarke
1919/02/04
1997.1929.0001
Patent - Process of manufacturing acetyl monomethyl aryl amines
Documentary
Dr. Hans T. Clarke
1922/04/04
1997.1967.0001
Patent - Soluble halogen-substituted cellulosic organic acid esters.
Documentary
Carl J. Malm
1929/03/05
1997.2004.0001
Patent- Cellulose Esters of Fatty Acids and Process of Making Same
Documentary
Carl J. Malm
1928/05/08
1997.1993.0001

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