U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

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Class 568 - Organic compounds -- part of the class 532-570 series

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684 Subclasses


Subclasses list

Definition

Lines with other classes and within this class

In this series of classes, class 568 is to be considered as an integral part of class 260 (after subclass 585) and follows the schedule hierarchy retaining all pertinent definitions and class lines of class 260.
 
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