Title:
TUNNELING MACHINE WITH INCLINED CUTTING WHEEL
United States Patent 3486794
US Patent References:
Cutterhead assembly for a shield-type tunneling machine
- - 3309142
Oscillating tunneling machine
- - 3355215
/0340759.html
- - 0340759
Apparatus for driving and lining tunnels in unstable soil
- - 3350889
Cutterhead assembly for a shield-type tunneling machine
- - 3309142
Oscillating tunneling machine
- - 3355215
/0340759.html
- - 0340759
Apparatus for driving and lining tunnels in unstable soil
- - 3350889
Inventors:
Tabor, John R.
Publication Date:
12/30/1969
View Patent Images:
Export Citation:
Assignee:
Tabor, John R.
Primary Class:
Other Classes:
37/189, 299/56, 405/144
International Classes:
E21D9/087; E21D23/04; E02F3/24
Foreign References:
| DE945981C | ||||
| DE66414C |