Hydraulic and earth engineering
Underground passageway, e.g., tunnel
Boring
Inventor
active
Shield for constructing tunnels with in-situ formed concrete lin
Shuttering for erecting a concrete tunnel lining
Shuttering for establishing concrete lining of tunnels
No associations
LandOfFree
Valentin A. Ivanov does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Valentin A. Ivanov, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valentin A. Ivanov will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-768150