Tools and hardware – Locking or closing device – Lock – latch or bolt
Patent
1989-01-13
1991-04-23
Burke, Wallace R.
Tools and hardware
Locking or closing device
Lock, latch or bolt
Patent
active
D03163660
REFERENCES:
patent: 2540686 (1951-02-01), Milburn
patent: 2638370 (1953-05-01), Price
patent: 2666319 (1954-01-01), Price
patent: 2919569 (1960-01-01), Davis
patent: 2923145 (1960-02-01), Labrie
Hansen Randall C.
Krahn Gilbert H.
A. L. Hansen Manufacturing Company
Burke Wallace R.
Vinson Brian N.
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