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Martin Sessler — 2 Patents

ATAT&T: 1 patents #10,626 of 18,772Top 60%

BLBell Telephone Laboratories: 1 patents #567 of 1,445Top 40%

Darmstadt, DE: #734 of 1,865 inventorsTop 40%

Overall (All Time): #2,336,647 of 4,157,543Top 60%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4742548	Unidirectional second order gradient microphone	James E. West	1988-05-03
4675906	Second order toroidal microphone	James E. West	1987-06-23