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Gregory Fuchs
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Framingham, MA, US
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last 30 patents
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Patent Grant
Check valve and backflow preventer
Patent number
5,947,152
Issue date
Sep 7, 1999
Grinnell Corporation
James F. Martin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Check valve and backflow preventer
Patent number
5,709,240
Issue date
Jan 20, 1998
Grinnell Corporation
James F. Martin
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...