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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 318/49 - Motors electrically connected in cascade or tandem


Subclass of Class 318 - Electricity: motive power systems
Definition: Subject matter in which there are one or more motors adapted
No. of applications: 6
Last issue date: 01/28/2010


Application No.Application TitleIssue Date
20100019701Mutually cross-interlocked multiple asynchronous AC induction electrical machines
For mutually cross-interlocked multiple asynchronous AC induction electrical machines of the present invention, wherein the applicable operating characteristic curves of the asynchronous AC induction electrical machines include the asynchronous AC induction electrical m...
01/28/2010
20090153080AC power driving apparatus
An AC power driving apparatus includes at least a DC input end, a DC motor, a plurality of AC output coils, a plurality of AC motors, a power chargeback device and a plurality of wires. The DC input end is connected to one side of the DC motor through the wires to suppl...
06/18/2009
20090033250Power unit
A power unit which makes it possible to reduce power transmitted from a prime mover to a driven part via an electrical path, to thereby increase the efficiency of driving the driven part. A first rotating machine of the power unit inputs and outputs energy between a sta...
02/05/2009
20080036403Fan control system
A fan control system. The system includes a plurality of fans, each having a control device. One of the fans is designated as a master fan and others are served as slave fans according to a specific designation method, wherein the control device of the master fan active...
02/14/2008
20060261761Fan control system
A fan control system. The system includes a plurality of fans, each having a control device. One of the fans is designated as a master fan and others are served as slave fans according to a specific designation method, wherein the control device of the master fan active...
11/23/2006
20050212470Power window system
A power window system includes: an open/close switch that is provided to each of a plurality of vehicle seats for issuing an open/close instruction to the corresponding seat windows; a control device for controlling the open/close operation of the seat windows based on ...
09/29/2005
 
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