Inventor

FENCL WARNER G

US2 patents

Patents

2 patents

US6875942B2Apr 5, 2005

Methods and systems for fabricating spiral welded cylinders

AMERICAN RAILCAR IND INC11 citations67

US6717093B2Apr 6, 2004

Methods and systems for fabricating spiral welded cylinders

AMERICAN RAILCAR IND INC1 citations45