Machines not elsewhere specified – Material working – abrading – or founding machinery – Abrading
Patent
1992-08-21
1993-10-26
Douglas, Alan P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Abrading
D15125
Patent
active
D03407292
REFERENCES:
patent: D328604 (1992-08-01), Chien
patent: 4607459 (1986-08-01), Rees
Berkman Michael G.
Davis Antoine D.
Douglas Alan P.
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