Arkady I. Mozhaev

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Pushkino, Moskovskaya oblast, SU

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Patents Grantslast 30 patents

Information Patent Grant
Shield for constructing tunnels with in-situ formed concrete lining
- Patent number 4,222,681
- Issue date Sep 16, 1980
- Vladimir A. Khodosh
- E21 - EARTH DRILLING MINING