Inventor
SZNOPEK JOHN L
3 patents
Patents
3 patentsUS4329193AMay 11, 1982
Method of making a coupling for rigid pressure pipe
MANVILLE SERVICE CORP28 citations77
US4319950AMar 16, 1982
Mandrel for making a coupling for rigid pressure pipe
MANVILLE SERVICE CORP17 citations68
US4354891AOct 19, 1982
Method of curing polyester resin in the presence of rubber
MANVILLE SERVICE CORP0 citations32