Inventor
KRUMP ROBERT C
US4 patents
Patents
4 patentsUS4249696AFeb 10, 1981
Charging circuit for battery in thermostat with battery operated timer
EMERSON ELECTRIC CO45 citations91
US4177923ADec 11, 1979
Battery operated thermostat timer with battery charging circuits
EMERSON ELECTRIC CO40 citations89
US4054245AOct 18, 1977
Timer controlled space thermostat with battery operated timer
EMERSON ELECTRIC CO17 citations65
US4215815AAug 5, 1980
Battery operated thermostat timer with battery charging circuits
EMERSON ELECTRIC CO6 citations59