Inventor

HENDERSON MARTIN E

US3 patents

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

AMERICAN DISTRICT TELEGRAPH CO

2 patents

US4412211AOct 25, 1983

System for test sequence annunciation

AMERICAN DISTRICT TELEGRAPH CO27 citations76

US4468664AAug 28, 1984

Non-home run zoning system

AMERICAN DISTRICT TELEGRAPH CO14 citations72

WOODING ANSON WILLIAM

1 patent

US8515022B2Aug 20, 2013

Speakerphone and extension speakerphone for use in personal emergency response system

WOODING ANSON WILLIAM5 citations55