Inventor

SCHAAF NORBERT

4 patents

Patents

4 patents

US4755674AJul 5, 1988

Infrared detector

HEIMANN GMBH19 citations78

US4752769AJun 21, 1988

Infrared motion alarm

HEIMANN GMBH19 citations77

US4276534AJun 30, 1981

A contactless resistance potentiometer

HEIMANN GMBH7 citations72

US4283702AAug 11, 1981

Contactless conductance potentiometer

HEIMANN GMBH3 citations60