Blanket heater with temperature control means

Abstract From the Canadian patent

TO ALL WHOM THIS MAY CONCERN:, Be it known that We JAMES P. MC MULLAN, a citizen of the United States and resident of the City of Huntington Beach, County of Orange, State of California, and ALBERT STEVENS, a citizen of the United States and resident of the City of Orange County of Orange, State of California, have invented a new and useful, BLANKET HEATER WITH, TEMPERATURE CONTROL MEANS of which the following is a specification: ABSTRACT OF THE DISCLOSURE, An electric resistance heater engageable with work to be heated including a work-engaging heater structure of minor thermal mass per unit area and including an elongate primary heating element arranged to establish high watt density …