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Longwall mining machine

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

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Longwall mining machine for the mining of thick mineral seams

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

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Longwall mining roof support for double deck machines

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

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Longwall mining system

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

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Longwall mining system and archshield for mining tar sands, oil

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

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Looped cable control device

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

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Low profile mining machine

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

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Low profile mining machine having a cutter mounted on a slidable

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

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Lubricant pumping eccentric in floor stripping machine

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

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Lubrication of oscillating head elements for floor stripping...

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

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