Inventor

BIRMAN STEPHEN P

US2 patents

Patents

2 patents

US4880479ANov 14, 1989

Cold drawn free-machining resulfurized and rephosphorized steel bars having controlled mechanical properties and controlled machinability

STANADYNE INC8 citations71

US4741786AMay 3, 1988

Cold drawn free-machining steel bar including bismuth

STANADYNE INC10 citations71