Title:
Selenium cell door closer
United States Patent 1822152

Inventors:
Kinnard, Luther J.
James, Dunlop
Publication Date:
09/08/1931
View Patent Images:
Download PDF 1822152 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
WESTINGHOUSE ELEC ELEVATOR CO
Primary Class:
187/317
Other Classes:
49/28, 49/25, 250/215, 49/30
International Classes:
B66B13/14