4. Mining or in situ disintegration of hard material
  5. Hard material disintegrating machines
  6. With mine roof-supporting means

Alfred A. M. Valantin

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Carriage with articulated track

Wheel substitutes for land vehicles – Combined or convertible
Patent

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Channelling machine for cutting a preliminary groove around the

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means
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Device for effecting translational movement of a machine

Motors: expansible chamber type – Relatively movable working members with one having motive... – Single valve unit controlling plural working chambers
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Profile ID: LFUS-PAI-P-870411

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