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 |
| 7291797 | Tuning structure of a sound mixer A tuning structure of a sound mixer is disclosed to include a switch set, formed of sliding switches with a respective switching lever, a face panel, which has sliding slots arranged in parallel for the passing of the switching levers of the switch set, a track set,... | 11/06/2007 |
| 7002114 | Methods and apparatus for a variable resistor configured to compensate for non-linearities in a heating element circuit An improved variable resistor at least partially compensates for non-linearities in an electrical circuit containing a heating element, for example, a thin-film heating element. A controllable heater includes a heating element, a voltage source (for example, a stand... | 02/21/2006 |
| 5816492 | Room temperature sensor and thermostat control device A thermostat control having improved user controls wherein an analog version contains a binary coded switch for selectively setting a setpoint temperature. The binary coded switch is configured to have discrete positions corresponding to a plurality of se... | 10/06/1998 |
| 5339065 | Adjustable microelectronic potentiometer A miniature potentiometer suitable for mechanical adjustment of microwave circuits is provided. Furthermore, there is provided a dual, ganged potentiometer also suitable for mechanical adjustment of microwave circuits. The dual, ganged potentiometer provi... | 08/16/1994 |
| 4845458 | Component assembly for electrical part A component assembly, for constituting an electrical part such a volume unit, comprises a pair of appropriate components, such as those approximate to each other in electrical characteristic, joined as a unit by a connecting plate. In use, the pair of com... | 07/04/1989 |
| 4843366 | Controller for use with dimmer module A wall box mounted voltage controller used in conjunction with a remotely located dimmer module for controlling multiple loads. The controller utilizes a printed circuit board structure and a multiplicity of control operators extendable from the printed c... | 06/27/1989 |
