Luminous brick and construction comprising the same
United States Patent 2216220
Inventors:
Baker, Edward B.
Publication Date:
10/01/1940
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Export Citation:
Assignee:
GEN ELECTRIC
Primary Class:
Other Classes:
52/308, 362/263, 313/485, 313/573, 315/189, 313/116
International Classes:
E04C1/42; F21V33/00; E04C1/00