Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Patent
1991-06-10
1993-10-05
Douglas, Alan P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
Patent
active
D03400611
REFERENCES:
patent: 30678 (1899-05-01), Childs
patent: D222390 (1971-10-01), Pinette
patent: D239649 (1976-04-01), Tobey
patent: 3193206 (1965-07-01), Bidwell
patent: 4854295 (1989-08-01), Sakarcan
Davis Antoine D.
Douglas Alan P.
Gilden Leon
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