High-frequency heating coil for metal workpieces

Details High-frequency heating coil for metal workpieces High-frequency heating coil for metal workpieces

2000-11-16

2002-07-02

Siegel, Mitchell (Department: 2912)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0459797

CLAIM:
The ornamental design for a high-frequency heating coil for metal workpieces, substantially as shown and described.

REFERENCES:
patent: 3585337 (1971-06-01), Rudd
patent: 3708645 (1973-01-01), Osborn
patent: 4237359 (1980-12-01), Roth
patent: 4482793 (1984-11-01), Lewis
patent: 4492840 (1985-01-01), Lex
patent: 4577081 (1986-03-01), Balzer
patent: 4619717 (1986-10-01), Balzer et al.
patent: D287119 (1986-12-01), Wadia
patent: 6097012 (2000-08-01), Shiozuka
patent: 04-255690 (1992-09-01), None

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