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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 330/57 - Artificial line


Subclass of Class 330 - Amplifiers
Definition: Subject matter wherein there is included as a signal coupling
No. of patents: 3
Last issue date: 04/29/2003


NumberTitleIssue Date
6556075Amplifier system and method that approximate constant impedance and quiescent outputs during forward and reverse modes
Amplifier systems and methods are provided which closely approximate a constant output impedance and a constant quiescent output signal during forward and reverse modes of operation. The systems can be realized with small, inexpensive components that are ...
04/29/2003
4157510Electronic instrument amplifier
The amplifier is intended for use in situations where a considerable distance separates the instrument (for example a piezo-electric transducer) to be monitored and the control room. The amplifier comprises a charge/current converter for converting the ch...
06/05/1979
3952262Balanced signal processing circuit
The invention utilizes a four-port hybrid junction in which a signal to be amplified or a low level stable reference signal is coupled to a first port in which a pair of similar or matched amplifiers or oscillators are coupled to the respective second and...
04/20/1976
 
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