Inventor

RANDA MARK

US2 patents

⚠️ This page may combine multiple inventors who share the name “RANDA MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EARTH TOOL CORP

1 patent

US5603383AFeb 18, 1997

Reversible pneumatic ground piercing tool

EARTH TOOL CORP33 citations89

EARTH TOOL CO LLC

1 patent

US5687803ANov 18, 1997

Method for reversing a ground piercing tool

EARTH TOOL CO LLC6 citations60