4. Hydraulic and earth engineering
  5. Underground passageway, e.g., tunnel
  6. Boring

Yoshio Yanagi

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Apparatus for electric furnace capable of effecting electrode co

Joints and connections – Interfitted members with external bridging piece
Patent

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Process for preparing tertiary amines

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
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Process for producing polycyclic diols

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent

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Shield tunneling machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring
Patent

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Profile ID: LFUS-PAI-P-429129

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