USD893460SActiveUtility

Vacuum tube speaker

37
Assignee: ECHOWELL ELECTRONIC CO LTDPriority: Apr 11, 2018Filed: Apr 11, 2018Granted: Aug 18, 2020
Est. expiryApr 11, 2038(~11.7 yrs left)· nominal 20-yr term from priority
Inventors:Hsi-Hsien Chen
37
PatentIndex Score
2
Cited by
14
References
1
Claims

Claims

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

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