Inventor
RANKIN JAMES R
US5 patents
⚠️ This page may combine multiple inventors who share the name “RANKIN JAMES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VERMEER MFG CO
4 patentsUS6454025B1Sep 24, 2002
Apparatus for directional boring under mixed conditions
VERMEER MFG CO128 citations96
US6668946B2Dec 30, 2003
Backreamer
VERMEER MFG CO39 citations91
US5778991AJul 14, 1998
Directional boring
VERMEER MFG CO72 citations91
US6588516B2Jul 8, 2003
Method and apparatus for directional boring under mixed conditions
VERMEER MFG CO16 citations90