Machines not elsewhere specified – Material working – abrading – or founding machinery – Element or attachment
Design Patent
2006-10-03
2006-10-03
Davis, Antoine D. (Department: 2915)
Machines not elsewhere specified
Material working, abrading, or founding machinery
Element or attachment
Design Patent
active
D0529523
CLAIM:
The ornamental design for a square mandrel, as shown and described.
REFERENCES:
patent: 3413391 (1968-11-01), Carroll et al.
patent: 4695241 (1987-09-01), Ventimiglia
patent: 4982687 (1991-01-01), Takahashi et al.
patent: D336094 (1993-06-01), Dejanon
patent: D457899 (2002-05-01), Nam et al.
Carstens David W.
Carstens & Cahoon LLP
D4D Technologies, L.P.
Davis Antoine D.
Palasik Patricia
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