Inventor
CASS DAVID T
US5 patents
⚠️ This page may combine multiple inventors who share the name “CASS DAVID T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROBBINS CO
4 patentsUS4646853AMar 3, 1987
Shaft boring machine and method
ROBBINS CO57 citations91
US4420188ADec 13, 1983
Double shield tunnel boring machine
ROBBINS CO35 citations91
US5203614AApr 20, 1993
Tunneling machine having liquid balance low flow slurry system
ROBBINS CO43 citations89
US5127711AJul 7, 1992
Hopper and hood combination for tunneling machine and tunneling machine having the same
ROBBINS CO3 citations60