United States Patent 2793286
Inventors:
Stiffel, Theophile A.
Publication Date:
05/21/1957
Assignee:
Stiffel, Theophile A.
Other Classes:
248/159, 108/59, D26/65
International Classes:
F16M13/00; F21V21/116; F21V21/13; F21V21/30; F21V21/10; F21V21/14