Inventor
THOMA FRIEDRICH X
DE4 patents
Patents
4 patentsUS4558192ADec 10, 1985
Multi-range timer switch device
GRAESSLIN FEINWERKTECH7 citations68
US4549154AOct 22, 1985
Magnetically retentive programmable switching control device
GRAESSLIN FEINWERKTECH11 citations68
US4588304AMay 13, 1986
Program carrier for switching chronometer systems
GRAESSLIN FEINWERKTECH5 citations57
US4564827AJan 14, 1986
Programmable control for a switching chronometer
GRAESSLIN FEINWERKTECH1 citations48