Machines not elsewhere specified – Material working – abrading – or founding machinery – Abrading
Design Patent
2002-11-21
2004-03-02
Davis, Antoine Duval (Department: 2913)
Machines not elsewhere specified
Material working, abrading, or founding machinery
Abrading
Design Patent
active
D0487279
CLAIM:
The ornamental design for a rotary grinding stone, as shown and described.
REFERENCES:
patent: D369360 (1996-04-01), Hunter
Japanese Publication dated Dec. 2, 1998.
Davis Antoine Duval
Morgan & Lewis & Bockius, LLP
Shinano Electric Refining Co., Ltd.
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