Machines not elsewhere specified – Heat treatment – welding or brazing
Design Patent
2001-02-15
2002-03-19
Davis, Antoine Duval (Department: 2913)
Machines not elsewhere specified
Heat treatment, welding or brazing
Design Patent
active
D0454578
CLAIM:
The ornamental design for a stud welding unit, as shown and described.
REFERENCES:
patent: D357927 (1995-05-01), Soderholm
patent: 5747773 (1998-05-01), Griffin et al.
patent: D411553 (1999-06-01), Scholl
patent: D416030 (1999-11-01), Weller et al.
patent: 6124567 (2000-09-01), Feldhausen et al.
Armbruster Steven E.
Landek-Riker Christopher S.
Davis Antoine Duval
Howard & Howard
Nelson Stud Welding, Inc.
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