Expandable fastener for hollow walls, cement blocks or the like

Details Expandable fastener for hollow walls, cement blocks or the like Expandable fastener for hollow walls, cement blocks or the like

1985-10-15

1988-09-20

Bullock, B. J.

Tools and hardware

Fastener, support or mount not elsewhere specified

Fastener or coupling

Patent

active

D02977087

REFERENCES:
patent: D256552 (1980-08-01), Rowinski
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patent: 2964989 (1960-12-01), Croessant
patent: 3718068 (1973-02-01), Passer
patent: 3888156 (1975-06-01), Fima
patent: 3895773 (1975-07-01), Solo
patent: 4094490 (1978-06-01), Einhorn
patent: 4269106 (1981-05-01), Leibhard

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