Tubular key

Details Tubular key Tubular key

1985-11-01

1987-06-30

Burke, Wallace R.

Tools and hardware

Locking or closing device

Lock, latch or bolt

D 8107, D 8 21

Patent

active

D02905817

REFERENCES:
patent: D244081 (1977-04-01), Steinbach
patent: D253160 (1979-10-01), Steinbach
patent: D259764 (1981-07-01), Fonhy
patent: D275932 (1984-10-01), Himbert et al.
patent: 3886780 (1975-06-01), Falk

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