Title:
Electrical illuminating apparatus
United States Patent 1809181


Inventors:
Alfred, Ramsden Louis
Application Number:
US41944430A
Publication Date:
06/09/1931
Filing Date:
01/08/1930
Assignee:
Alfred, Ramsden Louis
Primary Class:
Other Classes:
313/272, 313/316, 315/319, 340/815.67
International Classes:
F21S8/00; F21S10/02; H01K9/08
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