Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Patent
1982-10-22
1985-06-25
Gandy, James M.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
D 7400, D 7 47
Patent
active
D02793792
REFERENCES:
patent: 1294742 (1919-02-01), Wolff
patent: 2121220 (1938-06-01), Filkins
patent: 2257944 (1941-10-01), Fischbein
patent: 2283119 (1942-05-01), Kuhlman et al.
Certech Incorporated
Gandy James M.
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