Title:
BARREL-OPERATED LOCK
United States Patent 3473356
US Patent References:
/RE16123.html
- - RE16123

Lock
- - 1550435

Cylinder lock
- - 1883326

Cylinder lock
- - 2023208

Lock
- - 2097188


Inventors:
Niilola, Armas Kalervo
Publication Date:
10/21/1969
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Assignee:
Niilola, Armas K.
Primary Class:
70/360
Other Classes:
70/380, 70/421, 70/370, 70/417
International Classes:
E05B63/00; E05B9/08; E05B33/00; E05B15/14
US Patent References:
2690070Rotary tumbler cylinder lock
2729091Key operated lock mechanism
3287944Locking means
3345838Double sliding door lock
Foreign References:
SE186908A
IT490064B
FR947652A




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