Tunnel boring machine
A Standard patent application filed on 22 December 1989 credited to Hartwig, Carl Sverker Magnusson
;
Emanuelsson, Kaj Bengt Ingemar
Details
Application number :
47209
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Tunnel boring machine
Inventor :
Hartwig, Carl Sverker Magnusson
;
Emanuelsson, Kaj Bengt Ingemar