Machines not elsewhere specified – Material working – abrading – or founding machinery – Deforming or crushing
Patent
1991-10-01
1993-04-13
Douglas, Alan P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Deforming or crushing
D 8 32
Patent
active
D03347540
REFERENCES:
patent: D199459 (1964-10-01), Small et al.
patent: 4380922 (1983-04-01), Kowal
patent: 4452064 (1984-05-01), Custin
patent: 4587832 (1986-05-01), Illguth
patent: 4827755 (1989-05-01), Strybel
Parker Hannifin Corp., HB632 Tube Bender, Jan. 1987, cover page.
Pearson Richard A.
Potesta Richard E.
Davis Antoine D.
Douglas Alan P.
Stride Tool Inc.
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