Works of: Dr. Hans T. Clarke

Works of: Dr. Hans T. Clarke
1 to 24 of 48
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Cast of Out of the Fog
Photograph
Unidentified
Cast of Out of the Fog
1922
2009.0519.0001
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
Joseph Thacher Clarke and his family
Photograph
Joseph Thacher Clarke
Joseph Thacher Clarke and his family
ca. 1905
1998.0425.0001
Patent- Method For The Dehydration of Formic Acid
Documentary
Donald F. Othmer
Patent- Method For The Dehydration of Formic Acid
1931/10/06
1997.2649.0001
Patent- Process of Esterifying Cellulose Materials With Fatty Acids
Documentary
Dr. Hans T. Clarke
Patent- Process of Esterifying Cellulose Materials With Fatty Acids
1931/09/15
1997.2648.0001
Patent- Recovery of Cellulose Acetate From Acetic Acid Solutions
Documentary
Dr. Hans T. Clarke
Patent- Recovery of Cellulose Acetate From Acetic Acid Solutions
1931/09/15
1997.2647.0001
Patent- Cellulose Ester Composition
Documentary
Dr. Hans T. Clarke
Patent- Cellulose Ester Composition
1931/06/09
1997.2646.0001
Patent- Process of Removing Water From Aqueous Acetic Acid
Documentary
Dr. Hans T. Clarke
Patent- Process of Removing Water From Aqueous Acetic Acid
1931/05/12
1997.2645.0001
Patent- Photographic Sensitizer and Process For Making It
Documentary
Dr. Hans T. Clarke
Patent- Photographic Sensitizer and Process For Making It
1931/05/12
1997.2644.0001
Patent - Proc.-make org. esters of cellulose cont. acyl grps >2 c.atom
Documentary
Dr. Hans T. Clarke
Patent - Proc.-make org. esters of cellulose cont. acyl grps >2 c.atom
1931/04/14
1997.2010.0001
Patent - Method for making aminophenol derivatives.
Documentary
Dr. Hans T. Clarke
Patent - Method for making aminophenol derivatives.
1930/02/04
1997.2009.0001
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
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 of making a ketene.
Documentary
C. E. Waring
Patent - Process of making a ketene.
1929/08/06
1997.2006.0001
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 - 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 - Mixed cellulose organic esters & process for making
Documentary
Dr. Hans T. Clarke
Patent - Mixed cellulose organic esters & process for making
1929/03/05
1997.2003.0001
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 - 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 - 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 - Cellulose esters cont. nitro grps & halogen-subst.acyl grps.
Documentary
Dr. Hans T. Clarke
Patent - Cellulose esters cont. nitro grps & halogen-subst.acyl grps.
1928/11/6
1997.1999.0001
Patent - Cellulose esters containing unsaturated organic acid groups.
Documentary
Dr. Hans T. Clarke
Patent - Cellulose esters containing unsaturated organic acid groups.
1928/11/06
1997.1998.0001
Patent - Cellulose Esters
Documentary
Carl J. Malm
Patent - Cellulose Esters
1928/10/09
1997.1997.0001
Patent- Process Esterifying Mercerized Cellulose With Lower Fatty Acid
Documentary
Dr. Hans T. Clarke
Patent- Process Esterifying Mercerized Cellulose With Lower Fatty Acid
1928/10/09
1997.1996.0001
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