Door closer

Details Door closer Door closer

1991-06-17

1993-05-25

Vinson, Brian N.

Tools and hardware

Locking or closing device

Patent

active

D03358127

REFERENCES:
patent: D295254 (1988-04-01), Matsuo et al.
patent: D295366 (1988-04-01), Frolov
patent: 2820241 (1958-01-01), Schlage
patent: 2904819 (1959-09-01), Seaman

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