Cylinder keyway slot plug and extractor
United States Patent 3408842
US Patent References:
Multiple-plug key
- - 1696326
Cylinder keyway guard
- - 2068936
Two-piece key
- - 2591652
Keyway stop
- - 3276233
Two-piece key and extractor
- - 3338078
Multiple-plug key
- - 1696326
Cylinder keyway guard
- - 2068936
Two-piece key
- - 2591652
Keyway stop
- - 3276233
Two-piece key and extractor
- - 3338078
Inventors:
Barnes, Hyland J.
Foote, Daniel J.
Foote, Daniel J.
Publication Date:
11/05/1968
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Export Citation:
Assignee:
MASTER LOCK CO
Primary Class:
Other Classes:
70/428, 70/395
International Classes:
E05B17/16; E05B17/00