Rotary tumbler cylinder lock
United States Patent 2690070
US Patent References:
/0212957.html
- - 0212957

/0318861.html
- - 0318861

/0688070.html
- - 0688070

/1093817.html
- - 1093817

Barrel for locks
- - 1463495


Inventors:
Spain, Roy C.
Publication Date:
09/28/1954
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Assignee:
YALE & TOWNE MFG CO
Primary Class:
Other Classes:
70/407, 70/496, 70/358, 70/366
International Classes:
E05B29/00
US Patent References:
1616255Lock
2298698Lock
2318887Key for cylinder locks