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1 to 24 of 49 results for "hans t. clarke"
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Transparency
John G. Capstaff
Dr. Hans T. Clarke
ca. 1914-1917
1984.0068.0026
Image Not Available
Transparency
John G. Capstaff
Dr. Hans T. Clarke
ca. 1914-1917
1984.0068.0037
Joseph Thacher Clarke and his family
Photograph
Joseph Thacher Clarke
Joseph Thacher Clarke and his family
ca. 1905
1998.0425.0001
Joseph Thacher Clarke with sons (Eric and Hans)
Photograph
Joseph Thacher Clarke
Joseph Thacher Clarke with sons (Eric and Hans)
ca. 1905
1998.0428.0001
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
1920/11/02
1997.1932.0001
Patent- Cellulose nitrate composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose nitrate composition
1921/03/08
1997.1933.0001
Patent- Light filter
Documentary
Dr. Hans T. Clarke
Patent- Light filter
1919/02/04
1997.1929.0001
Patent- Cellulose ester composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ester composition
1919/07/15
1997.1930.0001
Patent- Cellulose ether composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition
1921/11/01
1997.1963.0001
Patent- Cellulose ester composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ester composition
1921/11/21
1997.1964.0001
Patent- Cellulose ether composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition
1922/02/07
1997.1965.0001
Patent- Cellulose ether composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose ether composition
1922/02/07
1997.1966.0001
Patent- Process of manufacturing acetyl monomethyl aryl amines
Documentary
Dr. Hans T. Clarke
Patent- Process of manufacturing acetyl monomethyl aryl amines
1922/04/04
1997.1967.0001
Patent- Process of manufacturing certain acetyl methyl amines
Documentary
Dr. Hans T. Clarke
Patent- Process of manufacturing certain acetyl methyl amines
1922/11/07
1997.1968.0001
Patent- Nitrocellulose composition
Documentary
Dr. Hans T. Clarke
Patent- Nitrocellulose composition
1923/02/06
1997.1969.0001
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
1928/11/6
1997.1999.0001
Patent- Process of making cellulose aceto esters cont. acyl grps.
Documentary
Carl J. Malm
Patent- Process of making cellulose aceto esters cont. acyl grps.
1929/01/08
1997.2000.0001
Patent- Process of making cellulosic esters cont. fatty acid grps.
Documentary
Dr. Hans T. Clarke
Patent- Process of making cellulosic esters cont. fatty acid grps.
1929/01/08
1997.2001.0001
Patent- Method of making 2:4-Dimethyl-6-Ethoxyquinoline
Documentary
E. R. Taylor
Patent- Method of making 2:4-Dimethyl-6-Ethoxyquinoline
1929/02/05
1997.2002.0001
Patent- Soluble halogen-substituted cellulosic organic acid esters
Documentary
Carl J. Malm
Patent- Soluble halogen-substituted cellulosic organic acid esters
1929/03/05
1997.2004.0001
Patent- Process of making organic esters of cellulose.
Documentary
Dr. Hans T. Clarke
Patent- Process of making organic esters of cellulose.
1929/06/11
1997.2005.0001
Patent- Process of making a ketene.
Documentary
C. E. Waring
Patent- Process of making a ketene.
1929/08/06
1997.2006.0001
Patent- Process of making mixed organic esters of cellulose
Documentary
Dr. Hans T. Clarke
Patent- Process of making mixed organic esters of cellulose
1929/11/12
1997.2007.0001
Patent- Process for making unsaturated acyl cellulose esters
Documentary
Carl J. Malm
Patent- Process for making unsaturated acyl cellulose esters
1929/12/10
1997.2008.0001
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