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 |
| 7341266 | Portable folding robotic system A portable robotic system having a folding carriage is disclosed. The carriage in one embodiment includes two legs and a lateral stabilizer. The folding legs and stabilizer allow the carriage to be maneuvered into a plurality of open and closed positions. In the ope... | 03/11/2008 |
| 7293790 | Omni-directional toy vehicle The invention relates with the omni-directional toy vehicle that can move in all directions of forward, backward, rotational, left and right movement by driving manually the omni-directional wheels installed at the vehicle and combining their rotational directions. ... | 11/13/2007 |
| 5442972 | Variable ratio bicycle drive mechanism A variable ratio bicycle drive mechanism has particular advantages for use in the drive train of an off-road bicycle but has application in human powered vehicles generally. The mechanism provides a mechanical advantage which varies with the position of t... | 08/22/1995 |
| 5002296 | Driving device for bicycle A driving device without chain for bicycle comprises a driving wheel mounted to a crank shaft, a rear gear mounted to a wheel hub for mounting a rear wheel of the bicycle, an input gear coupled with the driving wheel by means of an interconnecting link an... | 03/26/1991 |
| 4746135 | Pedal crank driven tricycle A non-motorized tricycle including: a frame having a seat for supporting a rider; a front wheel and two rear wheels; a steering member pivotably supported by the frame and supporting the front wheel; and a crank drive mechanism for rotating the rear wheel... | 05/24/1988 |
