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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 6409102 | Fuel injector assembly A valve that is well-suited for controlling the injection of fuel into an engine. The valve may include an inner housing that includes a movable valve stem and that is removably attachable to an engine. An electrically-actuatable coil assembly is removabl... | 06/25/2002 |
| 6357427 | System and method for ignition spark energy optimization A method for controlling spark energy from a spark plug of a combustion engine. The method includes determining a spark energy intensity based on at least one engine operating condition, determining a period of time to supply current to an ignition coil c... | 03/19/2002 |
| 6317680 | Automatic aircraft engine fuel mixture optimization A computer-assisted method for controlling the delivery of fuel to an engine. The method includes receiving an input signal indicative of a sensed speed of the engine, validating that the engine is in a cruise power mode based on the input signal, and pro... | 11/13/2001 |
