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Joseph M. Cardin
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Sparta, NJ, US
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last 30 patents
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Patent Grant
Rotary ball valve with retracting seat
Patent number
5,611,516
Issue date
Mar 18, 1997
Marotta Scientific Control, Inc.
Robert H. Reinicke
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...