Machines not elsewhere specified – Material working – abrading – or founding machinery – Deforming or crushing
Patent
1976-01-19
1977-01-04
Douglas, Alan P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Deforming or crushing
D1509
Patent
active
D02429489
REFERENCES:
patent: D188768 (1960-09-01), Hanson
patent: 3650140 (1972-03-01), Zmuda
Grimaldo Samuel
Watling Leighton Harvey
Douglas Alan P.
Pastoriza Ralph B.
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