Cylinder lock
United States Patent 2818723
US Patent References:
/0396628.html
- - 0396628

/0988633.html
- - 0988633

/1070367.html
- - 1070367

Pin-tumbler lock
- - 1417132

Lock
- - 1513718


Inventors:
Levin, Morris J.
Publication Date:
01/07/1958
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Assignee:
Levin, Morris J.
Primary Class:
70/383
Other Classes:
70/493, 70/338
International Classes:
E05B27/04
US Patent References:
1565556Pin-tumbler lock
1796098Lock
2113007Cylinder lock