Inventor

TROMBLY JOHN E

US5 patents

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

TELTONE CORP

2 patents

US4330687AMay 18, 1982

Audio and full duplex digital data carrier system

TELTONE CORP59 citations91

US4302629ANov 24, 1981

Digital data transmission system

TELTONE CORP142 citations91

LITTLE INC A

1 patent

US4031449AJun 21, 1977

Electromagnetically coupled battery charger

LITTLE INC A231 citations96

EASTERN CO

1 patent

US4031434AJun 21, 1977

Keyhole-less electronic lock

EASTERN CO113 citations92

EASTERN

1 patent

US4207555AJun 10, 1980

Lock system

EASTERN46 citations90