Dead-bolt lock

Details Dead-bolt lock Dead-bolt lock

1984-05-11

1986-09-23

Burke, Wallace R.

Tools and hardware

Locking or closing device

Lock, latch or bolt

D 8331

Patent

active

D02857723

REFERENCES:
patent: 2004746 (1935-06-01), Boyko
patent: 2119456 (1938-05-01), Dies
patent: 2225663 (1940-12-01), Segal
patent: 3746380 (1973-07-01), Kartarik
patent: 3760619 (1973-09-01), Colombo
patent: 4061383 (1977-12-01), Waldo
patent: 4067212 (1978-01-01), Vorob
Russwin Builder's Hardware Catalogue (1957) Dead Lock #1266, p. 26.
Yale Europa Catalog-date unknown, cover page and p. 19.
The New England Lock & Hardware Co. catalog-date unknown.

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