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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 172/37 - Tool rotated by attendant


Subclass of Class 172 - Earth working
Definition: Apparatus in which an earth working element is mounted for
No. of patents: 3
Last issue date: 11/08/2011


NumberTitleIssue Date
8051918Method and apparatus for weed removal
A method and apparatus for weed removal, wherein using a depilatory method (new use) with an extension spring having an arcuate axis and being driven in a rotational sliding motion relative to the soil-bearing weed to be removed. For this purpose the apparatus is eq...
11/08/2011
7143835Walk-behind electric working machine
A walk-behind electric working machine has a frame, an electric motor mounted on the frame, and a handle support section mounted on the frame, the handle support section having a pair of electrical terminals. A handle post has a first end portion for removable conne...
12/05/2006
5960889Cordless soil tiller
A soil tiller is provided including a hand held, portable frame having a handle. Also included is a drive assembly having a power source mounted within the frame and a motor for rotating upon the receipt of power from the power source. Next provided is at...
10/05/1999
 
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