Inventor
VISALLI ROBERT G
US3 patents
Patents
3 patentsUS5586749ADec 24, 1996
Composite polyethylene and transition valve
KEROTEST MFG CORP34 citations89
US4231549ANov 4, 1980
Valve stem and valve disc connection for a diaphragm valve
KEROTEST MFG CORP29 citations77
US4151979AMay 1, 1979
Diaphragm valve having a Belleville-spring assembly
KEROTEST MFG CORP11 citations68