Manipulation resistant combination lock
United States Patent 3073145
US Patent References:
/0550655.html
- - 0550655

Combination lock
- - 2601774


Inventors:
Potzick, Anthony J.
Publication Date:
01/15/1963
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Assignee:
MOSLER LOCK COMPANY
Primary Class:
70/303A
Other Classes:
70/309
International Classes:
E05B37/08; E05B37/00
Foreign References:
AU157285B
GB705729A