Tools and hardware – Other tools and implements – Abrading
Patent
1988-02-01
1990-09-18
Dunkins, Bruce W.
Tools and hardware
Other tools and implements
Abrading
Patent
active
D03106209
REFERENCES:
patent: D198859 (1964-08-01), Madl
patent: D202799 (1965-11-01), De Fano et al.
patent: D280286 (1985-08-01), Van Asten
patent: D303209 (1989-09-01), Friel
patent: 4807399 (1989-02-01), Friel
Dunkins Bruce W.
Heflin Clare E.
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