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Class Information
Number: 342/395
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > With transmisson of bearing or position determinative signals > Iso-phase type > With hetrodyne synchronization
Description: Subject matter including spaced transmitting stations which are not phase synchronized.










Patents under this class:

Patent Number Title Of Patent Date Issued
4547777 Method of radio-position-finding through determination of phases of electromagnetic waves and receiving device for practicing the method Oct. 15, 1985
4442432 Electronic navigation method and system Apr. 10, 1984
4229737 Ranging system and method for determining the range of a vehicle from a plurality of reference points Oct. 21, 1980











 
 
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