Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Patent
1988-06-16
1990-09-18
Holtje, Nelson C.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
D15130, 82 50, 142 53
Patent
active
D03106730
REFERENCES:
patent: D212447 (1968-10-01), Kaser
patent: 268393 (1882-12-01), Evans
patent: 1878690 (1932-09-01), Forney
patent: 3091474 (1963-05-01), Boutros et al.
patent: 4702132 (1987-10-01), Grosse
Asch Jeffrey
Holtje Nelson C.
Roston Ellsworth R.
Schwartz Charles H.
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