United States Patent 2143214
Publication Date:
01/10/1939
Assignee:
Egyesuelt, Izzolampa
Other Classes:
386/E05.055, 250/324, 313/361.100, 427/466, 347/120, 430/123.500, 313/308, 313/146, 313/310, 430/53, 427/71, 101/DIG.037, 313/230, 313/306, 313/323, 315/169.100, 369/101, 313/325
International Classes:
H04N1/29; H04N5/80