USD448352SExpiredUtility
Portion of a frequency changer
Est. expiryOct 19, 2019(expired)· nominal 20-yr term from priority
Inventors:Sato Atsushi
55
PatentIndex Score
11
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10
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a portion of a frequency changer, as shown and described.
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