Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Design Patent
1996-08-09
2001-02-27
Davis, Antoine Duval (Department: 2913)
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
Design Patent
active
D0438219
CLAIM:
The ornamental design for a hole saw, as shown and described.
REFERENCES:
patent: 4579486 (1986-04-01), Damico
patent: 5061126 (1991-10-01), Cain et al.
patent: 5154552 (1992-10-01), Koetsch
patent: 5597274 (1997-01-01), Behner
Credo Tool Company
Davis Antoine Duval
McDermott & Will & Emery
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