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 |
| 5129346 | Rudder sleeve for boat rudder A rudder sleeve for enlarging the surface area of a boat rudder includes first and second stainless steel plates having four side edges defining first and second opposed major hydrodynamic surfaces. The rudder sleeve has a substantially rectilinear periph... | 07/14/1992 |
| 4101998 | Buoyancy control apparatus for divers A buoyancy control system for carrying by a diver has a fluid-tight reservoir comprised of a plurality of parallel longitudinally extending passageways, into which water and compressed gas can be selectively admitted through respective inlet valves to dis... | 07/25/1978 |
