| http://www.w3.org/ns/prov#value | - G. D. SKINNER HEATING AND VENTILATING SYSTEM Filed Feb. 28, Patented Sept. 26, 1944 NT OFFICE HEATING ANDVENTILATI NG SYSTEM George DonaldSkinner, London, England Application Februar 28, 1942, Serial No. 432,899 H In Great Britain October 13, 1941 4 Claims. (01. 250-43) This invention relates to heating and ventilating systems and more particularly to heating and air conditioning units adapted to
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