Tools and hardware – Locking or closing device – Lock – latch or bolt
Patent
1992-06-19
1994-03-15
Vinson, Brian N.
Tools and hardware
Locking or closing device
Lock, latch or bolt
Patent
active
D03450937
REFERENCES:
patent: 4871204 (1989-10-01), Cook et al.
patent: 5016929 (1991-05-01), Frolov
patent: 5033779 (1991-07-01), Geringer et al.
Dynalock Series 3000 Advertisement, Jan. 1990 Doors & Hardware Magazine.
Securitron Magnalock Advertisement, Jan. 1990, Access Control Magazine.
Deimen James M.
Vinson Brian N.
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