| http://www.w3.org/ns/prov#value | - Pa tented Jan. 5, 1937 PATENT OFFICE 2,066,973 I r j LIGHTING UNIT I Cromwell A. B. Halvorson, Lynn, Mass., assignor to General Electric Co New York mpany, acorporation of Application September 27, 1934, Serial No. 745,735 '1 Claims. (01. 240-25) My invention relates to lighting units and more particularly to lighting units wherein incandescent lamps and electric discharge lamps, such as the sodiu
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