Inventor

YAMA FRANK M

US2 patents

⚠️ This page may combine multiple inventors who share the name “YAMA FRANK M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PICKERING & CO INC

1 patent

US4409588AOct 11, 1983

Miniature sounder with multi-part tuned cavities

PICKERING & CO INC9 citations69

HOFER ALAN

1 patent

US4413253ANov 1, 1983

Miniature sounder with double tuned cavity

HOFER ALAN14 citations68