Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Patent
1991-07-18
1993-08-31
Douglas, Alan P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
D15138
Patent
active
D03389022
REFERENCES:
patent: D148210 (1947-12-01), Bamberger
patent: D148211 (1947-12-01), Bamberger
patent: 3626794 (1971-12-01), Seethaler
patent: 3819193 (1974-06-01), Kyriakov
patent: 3858362 (1975-01-01), Welsch
patent: 3871138 (1975-03-01), Welsch
patent: 4602798 (1986-07-01), Wettstein
patent: 4866319 (1989-09-01), Crutchfield
Davis Antoine D.
Douglas Alan P.
Gernstein Terry M.
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