Inventor
PARRISH DELBERT E
US3 patents
Patents
3 patentsUS6662853B2Dec 16, 2003
Method of making bolsters and sideframes for railway car trucks
AMSTED IND INC30 citations94
US6622776B2Sep 23, 2003
Method of making sideframes for railway car trucks
AMSTED IND INC35 citations94
US5752564AMay 19, 1998
Railway truck castings and method and cores for making castings
AMSTED IND INC62 citations94