USD855167SActiveUtility
Donut humidifier
Est. expiryApr 4, 2039(~12.7 yrs left)· nominal 20-yr term from priority
Inventors:Xiangfu Li
61
PatentIndex Score
9
Cited by
16
References
1
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The ornamental design for a donut humidifier, as shown and described.Cited by (0)
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