Protective cover for nut or bolt heads

Details Protective cover for nut or bolt heads Protective cover for nut or bolt heads

1985-02-25

1988-11-29

Bullock, B. J.

Tools and hardware

Fastener, support or mount not elsewhere specified

Fastener or coupling

D 8397, D 8499

Patent

active

D02987376

REFERENCES:
patent: D218226 (1970-08-01), Painaud
patent: D249227 (1978-09-01), Ismert, III et al.
patent: 1450583 (1923-04-01), Ferry
patent: 3072423 (1963-01-01), Charlton
patent: 3273441 (1966-09-01), Blesecker
patent: 3921687 (1975-11-01), Stencel
patent: 4129060 (1978-12-01), Gould
patent: 4582462 (1986-04-01), Thiel

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