Did You Know...
...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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| Number | Title | Issue Date |
| 5388943 | Cotter pin guard and retainer A device for guarding and retaining a cotter pin in place after insertion in a pin or bolt. The device is formed from springy sheet material, preferably in the form of a spring steel stamping. It has a washer portion with a central opening to fit over a p... | 02/14/1995 |
| 5152652 | Cotter pin spreader with safety lock feature A device for automatically spreading and locking cotter pins as they are driven into place. The device is an improvement on the cotter pin spreading devices disclosed in U.S. Pat. Nos. 1,751,013 dated Mar. 18, 1930 and 2,345,141 dated Mar. 28, 1944. The i... | 10/06/1992 |
| 4543024 | Combined washer and cotter pin anti-snag device A combined washer and cotter pin anti-snag device comprises a base portion, a raised portion integral with the base portion, a transverse hole in the raised portion through which a fastener is adapted to extend, and a longitudinal hole in the raised porti... | 09/24/1985 |
