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Class Information
Number: 342/713
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
342/1	Radio wave absorber	269
342/104	Determining velocity	332
342/118	Determining distance	677
342/13	Radar ew (electronic warfare)	472
342/147	Determining direction	313
342/159	Clutter elimination	621
342/165	Testing or calibrating of radar system	426
342/175	With particular circuit	1,197
342/21	Base band system	143
342/22	Transmission through media other than air or free space	527
342/23	Berthing or docking	22
342/24	Blind aid	24
342/25R	Synthetic aperture radar	247
342/26R	Radar for meteorological use (epo)	247
342/27	Presence detection only	536
342/29	Aircraft collision avoidance system (cas)	335
342/33	Aircraft landing system	137
342/350	Directive	78
342/36	Air traffic control	245
342/41	Ship collision avoidance	76
342/42	Radar transponder system	504
342/5	Radar reflector	137
342/52	Combined with diverse type radiant energy system	291
342/59	Plural radar	239
342/60	Transmitting intelligence	74
342/61	Return signal controls external device	195
342/73	Return signal controls radar system	106