Title:
Multi-digit electrical combination lock
United States Patent 3380024


Inventors:
Watkinson, Brian G.
Application Number:
US36039864A
Publication Date:
04/23/1968
Filing Date:
04/16/1964
Assignee:
NORTHERN ELECTRIC CO
Primary Class:
Other Classes:
70/278.5, 340/5.3, 340/5.54, 340/5.55, 340/11.1, 361/171, 361/198
International Classes:
G07C9/00
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