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VACUUM DEMAND VALVE

09/880,720 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed June 13, 2001
Examiner STEPHEN M HEPPERLE
Class 137
Art Group 3753
Patent No. 6,550,493
Case Type Utility - 137/510000
Status Patented Case
Child PCT/US02/18633 Published
Child 10/265,758 Patented
Child 10/265,930 Patented
Child 10/265,936 Patented
Child 10/266,002 Patented
Child 10/265,847 Patented
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Last Updated: 6 years, 5 months ago
Date # Transaction