Inventor

BERNS CHARLES

3 patents

Patents

3 patents

US3980997ASep 14, 1976

Smoke detector

GEN SIGNAL CORP29 citations79

US3931549AJan 6, 1976

Control circuit for electromagnetic transducer

GEN SIGNAL CORP15 citations69

US4005413AJan 25, 1977

Buzzer construction and method of adjusting the same

GEN SIGNAL CORP6 citations57