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Class Information
Number: 342/416
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 > Fixed course or bearing indicating > Distinctive frequencies equi-signal type > Sequentially effective reflectors
Description: Subject matter in which the alteration of the directional patterns is produced by alternating the effectiveness of two reflecting units.

Patents under this class:

Patent Number Title Of Patent Date Issued
8478521 Method and terminal for providing a route in a navigation system using satellite image Jul. 2, 2013
7636620 Signal distribution device operating in aircraft instrumental landing systems Dec. 22, 2009

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