Tools and hardware – Locking or closing device – Lock – latch or bolt
Patent
1987-12-01
1989-09-26
Burke, Wallace R.
Tools and hardware
Locking or closing device
Lock, latch or bolt
Patent
active
D03036251
REFERENCES:
patent: D214870 (1969-08-01), Malone
patent: 2491246 (1949-12-01), Bloomfield
patent: 4494784 (1985-01-01), Haynes
patent: 4641869 (1987-02-01), Johnson
House and Garden, Feb. 1975, p. 145-Window Safety Lock.
Cook Milton B.
Ryser Julius V.
Burke Wallace R.
Vinson Brian N.
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