Title:
Pin tumbler assembly
United States Patent 3073146
US Patent References:
Pin-tumbler cylinder lock
- - 1650564

Shut-out cylinder
- - 1650568

Lock construction
- - 2007143

Lock
- - 2059129

Two-piece key
- - 2591652


Inventors:
Patriquin, George P.
Publication Date:
01/15/1963
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Assignee:
INDEPENDENT LOCK CO
Primary Class:
70/383
International Classes:
E05B27/00