Title:
Collapsible concentric ring luminaire
United States Patent 2771544


Inventors:
Lipscomb, Willis L.
Application Number:
US37879953A
Publication Date:
11/20/1956
Filing Date:
09/08/1953
Assignee:
Lipscomb, Willis L.
Primary Class:
Other Classes:
362/352, 362/404
International Classes:
F21V17/00
View Patent Images:
US Patent References:
2625648Collapsible and invertible lamp shade1953-01-13
2435715Illuminating fixture1948-02-10
2303747Indirect lighting fixture1942-12-01
2087750Lamp shade1937-07-20
1193191N/A1916-08-01