Frequency converter
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Description
Claims
The ornamental design for a frequency converter, as shown and described.
Referenced Cited
U.S. Patent Documents
D358753 | May 30, 1995 | Yoshida et al. |
D409139 | May 4, 1999 | Cornell et al. |
D455714 | April 16, 2002 | Kim |
D541745 | May 1, 2007 | Virolainen et al. |
D558141 | December 25, 2007 | Kwon |
D560607 | January 29, 2008 | Suematsu et al. |
D562234 | February 19, 2008 | Morihara et al. |
D569795 | May 27, 2008 | Higuchi |
D573945 | July 29, 2008 | Park |
D586744 | February 17, 2009 | Jaskari |
D606017 | December 15, 2009 | Charlson et al. |
Patent History
Patent number: D706216
Type: Grant
Filed: Dec 30, 2012
Date of Patent: Jun 3, 2014
Assignee: Vacon Oyj (Vaasa)
Inventor: Andrea Perin (Cavriago)
Primary Examiner: Derrick Holland
Application Number: 29/441,018
Type: Grant
Filed: Dec 30, 2012
Date of Patent: Jun 3, 2014
Assignee: Vacon Oyj (Vaasa)
Inventor: Andrea Perin (Cavriago)
Primary Examiner: Derrick Holland
Application Number: 29/441,018
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)