Machines not elsewhere specified – Material working – abrading – or founding machinery – Cutting
Patent
1990-09-06
1992-07-21
Walsh, Donald P.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Cutting
Patent
active
D03280802
REFERENCES:
patent: D266766 (1982-11-01), Lawson
patent: D285083 (1986-08-01), Miyamoto
patent: D311192 (1990-10-01), Juang
patent: 2792036 (1957-05-01), Buttke
patent: 2873776 (1959-02-01), Buttke
Hitachi Koki Co., Ltd. catalog illustrating a series of electric planes under product designations P100FF through PF60F published Jul. 1989.
Hayama Yoshimasa
Matsumoto Yoshio
Oka Eisaku
Ozawa Hiromi
Davis Antoine D.
Hitachi Koki Haramachi Co., Ltd.
Walsh Donald P.
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