Inventor

UMPLEBY KENNETH F

3 patents

Patents

3 patents

US4141010AFeb 20, 1979

Digital encoder for door operator

MULTI ELMAC CO33 citations88

US4142137AFeb 27, 1979

Operator motor control

MULTI ELMAC CO12 citations68

US4045715AAug 30, 1977

Operator motor control

MULTI ELMAC CO19 citations68