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Class Information
Number: 342/461
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Position indicating (e.g., triangulation) > With speed determination
Description: Subject matter including means to determine the velocity of an object.

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
3944968 Aircraft ground proximity warning system having speed versus altitude compensation Mar. 16, 1976

1 2

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