78177748
Oct 23, 2002
May 4, 2004
[ ELECTRONIC AND ELECTROMECHANICAL CONTROLS FOR ELECTRIC SPACE HEATERS; THERMOSTATS FOR ELECTRIC SPACE HEATERS AND FORCED AIR HEATERS ]
Electrical and Scientific ApparatusELECTRIC SPACE HEATERS, PORTABLE ELECTRIC FORCED AIR HEATERS, AND ELECTRIC FANS
Environmental Control Apparatus