Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Design Patent
2001-11-16
2002-11-26
Davis, Antoine Duval (Department: 2913)
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
Design Patent
active
D0466139
CLAIM:
The ornamental design for a core drill, as shown and described.
REFERENCES:
patent: 4208154 (1980-06-01), Gandy
patent: D342270 (1993-12-01), Kwang
patent: 5996571 (1999-12-01), Jedick
patent: 6033295 (2000-03-01), Fisher et al.
patent: 9317454 (1993-08-01), None
Chang Joon Ho
Kim See Hyung
Davis Antoine Duval
Ehwa Diamond Industrial Co. Ltd.
Webb Ziesenheim & Logsdon Orkin & Hanson, P.C.
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