72463516
Jul 20, 1973
Jul 6, 1976
ELECTRONIC-MECHANICAL PROGRAMMER FOR HEATING FUEL SYSTEMS FOR SOLID FUELS, LIQUID FUELS OR GASEOUS FUELS, WHICH REGULATES AND THEREBY CONTROLS THE PROGRAMMED FUEL-BURNING PERIODS OF FUEL BURN RESULTING IN PREDETERMINED AMOUNTS OF HEAT PRODUCTION
Housewares and Glass