Title:
ELECTRIC LOCK OR ELECTRIC DOOR OPENER
Document Type and Number:
United States Patent 3521921
Inventors:
Miyazaki, Nagao
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Publication Date:
07/28/1970
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Export Citation:
Assignee:
JAPAN ELECTRONICS IND LTD
Primary Class:
Other Classes:
292/341.160, 292/254, 292/144, 292/DIG.058, 70/464
International Classes:
E05B47/04; E05C3/00; E05B15/02
US Patent References:
| 3122388 | Electric strike |
Foreign References:
| NL39028C | ||||
| DE177383C | ||||
| DE182101C | ||||
| CH313939A | ||||
| DE880426C |