4. E - Fixed Constructions
  5. 21
  6. D

Tunneling shield

E - Fixed Constructions – 21 – D

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61/68

E21D 9/08 (2006.01)

Patent

CA 929364

Arkady I. Mozhaev

E - Fixed Constructions – 21 – D
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Evgeny M. Bolotin

E - Fixed Constructions – 21 – D
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Evstafy A. Vasilenko

E - Fixed Constructions – 21 – D
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Kazimir S. Yanchevsky

E - Fixed Constructions – 21 – D
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Leonid I. Saveliev

E - Fixed Constructions – 21 – D
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Gosudarstvenny Proektno-Izyskatelsky Institut "metrogiprotrans"

E - Fixed Constructions – 21 – D
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