Classifications: Documentary

Classifications: Documentary
1,249 to 1,272 of 1,338
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Patent- Automatic camera
Documentary
Benjamin Day Chamberlin
Patent- Automatic camera
June 17, 1930
Patent- Automatically focusing enlarging camera
Documentary
Benjamin Day Chamberlin
Patent- Automatically focusing enlarging camera
June 11, 1929
Patent- Roll holder for photographic cameras
Documentary
Benjamin Day Chamberlin
Patent- Roll holder for photographic cameras
March 12, 1929
Patent- Printing stamp
Documentary
Benjamin Day Chamberlin
Patent- Printing stamp
June 5, 1928
Patent- Photographic printing machine
Documentary
Benjamin Day Chamberlin
Patent- Photographic printing machine
April 10, 1928
Patent- Photographic printing machine
Documentary
Benjamin Day Chamberlin
Patent- Photographic printing machine
December 6, 1927
Patent- Photographic film spool
Documentary
Benjamin Day Chamberlin
Patent- Photographic film spool
November 8, 1927
Patent- Numbering stamp for printing machines
Documentary
Benjamin Day Chamberlin
Patent- Numbering stamp for printing machines
September 7, 1926
Patent- Motion Picture Apparatus
Documentary
Benjamin Day Chamberlin
Patent- Motion Picture Apparatus
May 4, 1926
Patent- Numbering stamp for photographic print machines
Documentary
Benjamin Day Chamberlin
Patent- Numbering stamp for photographic print machines
August 10, 1926
Patent- Resilient type disk numbering stamp for photo print machines
Documentary
Benjamin Day Chamberlin
Patent- Resilient type disk numbering stamp for photo print machines
February 9, 1926
Patent- Aerial camera
Documentary
Benjamin Day Chamberlin
Patent- Aerial camera
July 22, 1924
Patent- Photographic shutter
Documentary
Benjamin Day Chamberlin
Patent- Photographic shutter
April 29, 1924
Patent- Photographic film spool
Documentary
Benjamin Day Chamberlin
Patent- Photographic film spool
June 17, 1919
Patent- Cellulose comp of matter contain trimethylene glycol dibutyrat
Documentary
Stewart J. Carroll
Patent- Cellulose comp of matter contain trimethylene glycol dibutyrat
December 15, 1931
Patent- Cellulose composition of matter containing tripropionin
Documentary
Stewart J. Carroll
Patent- Cellulose composition of matter containing tripropionin
October 6, 1931
Patent- Cellulose composition of matter containing methyl anisate
Documentary
Stewart J. Carroll
Patent- Cellulose composition of matter containing methyl anisate
October 6, 1931
Patent- Cellulose comp of matter contain ethyl-a-bromo-propionate
Documentary
Stewart J. Carroll
Patent- Cellulose comp of matter contain ethyl-a-bromo-propionate
October 6, 1931
Patent- Cellulosic composition of matter containing ethyl chloro-carb
Documentary
Stewart J. Carroll
Patent- Cellulosic composition of matter containing ethyl chloro-carb
October 6, 1931
Patent- Cellulosic composition of matter containing chlorcyclohexane
Documentary
Stewart J. Carroll
Patent- Cellulosic composition of matter containing chlorcyclohexane
October 6, 1931
Patent- Cellulosic composition of matter containing bromo compounds
Documentary
Stewart J. Carroll
Patent- Cellulosic composition of matter containing bromo compounds
October 6, 1931
Patent- Cellulosic composition of matter containing acetyl phenyl gly
Documentary
Stewart J. Carroll
Patent- Cellulosic composition of matter containing acetyl phenyl gly
October 6, 1931
Patent- Cellulosic composition of matter containing iodo-benzene
Documentary
Stewart J. Carroll
Patent- Cellulosic composition of matter containing iodo-benzene
July 7, 1931
Patent- Cellulosic composition of matter containg isopropyl bromide
Documentary
Stewart J. Carroll
Patent- Cellulosic composition of matter containg isopropyl bromide
July 7, 1931
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