Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Patent
1992-06-09
1994-06-14
Douglas, Alan P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
Patent
active
D03478483
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patent: 3880546 (1975-04-01), Segal
patent: 4606108 (1986-08-01), Davis
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patent: 4838366 (1989-06-01), Jones
patent: 5031709 (1991-07-01), Fischer
Davis Antoine D.
Douglas Alan P.
Gernstein Terry M.
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