Inventor

STEVENSON DANIEL T

US3 patents

Patents

3 patents

US5678827AOct 21, 1997

Tank car manway gasket

SALCO PRODUCTS INC32 citations89

US6263802B1Jul 24, 2001

Hopper car outlet gate valve

SALCO PRODUCTS INC6 citations70

US6378443B2Apr 30, 2002

Hopper car outlet gate valve

SALCO PRODUCTS INC2 citations59