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Apparatus for obtaining uniform gas flow through an in situ oil

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Apparatus for pivotally positioning a clearing shield for a drum

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working
Patent

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Apparatus for planing a paved surface

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for positioning supply connections into association wi

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working
Patent

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Apparatus for precision cutting of concrete surfaces

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for progessively removing layers of overburden from an

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working
Patent

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Apparatus for protecting of coal mine workers

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
Patent

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Apparatus for rapidly generating pressure pulses for demolition

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent

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Apparatus for recovering minerals, in particular manganese nodul

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
Patent

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Apparatus for recovering particulate material from the sea botto

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
Patent

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Apparatus for recovery of sulfur

Mining or in situ disintegration of hard material – With separation of materials
Patent

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Apparatus for reflex-percussive cutting of concrete etc.

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for removing a floor covering

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Reexamination Certificate

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Apparatus for removing a surface layer from a floor or the like

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for removing and collecting moisture from a moisture-l

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means
Patent

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Apparatus for removing asbestos and like materials from a surfac

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means
Patent

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Apparatus for removing floor covering

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for removing floor covering

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for removing floor covering

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Apparatus for removing material

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means
Patent

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