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Check valve for oxygen service

  • US D536,443 S1
  • Filed: 03/16/2005
  • Issued: 02/06/2007
  • Est. Priority Date: 03/16/2005
  • Status: Expired due to Term
First Claim
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1. The ornamental design for a check valve for oxygen service, as shown and described.

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  • 3 Assignments
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