USD473931SExpiredUtility
Switch valve
Priority: Sep 9, 2002Filed: Sep 9, 2002Granted: Apr 29, 2003
Est. expirySep 9, 2022(expired)· nominal 20-yr term from priority
Inventors:Hung-Lin Lai
71
PatentIndex Score
17
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedI claim the ornamental design for a switch valve, as shown and described.
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