Portion of a frequency changer

Details Portion of a frequency changer Portion of a frequency changer

2000-04-18

2001-09-25

Vinson, Brian N. (Department: 2911)

Equipment for production, distribution, or transformation of ene

Distribution, modification or control

Switch or casing therefor

CD13S156000, CD13S152000

Design Patent

active

D0448352

CLAIM:
The ornamental design for a portion of a frequency changer, as shown and described.

REFERENCES:
patent: D. 358753 (1995-05-01), Yoshida et al.
patent: D. 400506 (1998-11-01), Mahoney
patent: D. 400512 (1998-11-01), Korhonen
patent: D. 401568 (1998-11-01), Alden et al.
patent: D. 416232 (1999-11-01), Einck
patent: D. 421598 (2000-03-01), Berusha et al.
patent: 5677578 (1997-10-01), Tang
patent: 5814905 (1998-09-01), Tang
patent: 6133939 (2000-10-01), Gresko et al.
patent: 924629 (1995-05-01), None
patent: 1006918 (1998-04-01), None
9600 USY, Nihon Alcatel Kabushiki Kaisha, (Prior to Oct. 19, 1999).

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