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Rotational device

75
Assignee: CHEN XUEFENGPriority: Dec 26, 2017Filed: Dec 26, 2017Granted: Mar 10, 2020
Est. expiryDec 26, 2037(~11.5 yrs left)· nominal 20-yr term from priority
Inventors:Xuefeng Chen
75
PatentIndex Score
17
Cited by
16
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a rotational device, as shown and described.

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