U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Patent No. 5265827

Paddle Wheel Plane

An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.

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Class 455/156.1 - Audible indicator


Subclass of Class 455 - Telecommunications
Definition: Subject matter comprising means to generate a specific tone
No. of patents: 41
Last issue date: 11/25/2008


  2  
NumberTitleIssue Date
3999132Stereo inhibit circuit
A stereo inhibit circuit adaptable for use in an FM stereo radio having a stereo indicating light is disclosed. A level detector and a mute circuit develop a mute signal which is related to the amount of signal noise at the output of an FM detector. This ...
12/21/1976
  2  
 
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