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Mining ultra thin coal seams

Mining or in situ disintegration of hard material – Mine layouts
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Mining unit of coal combines

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...
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Mobile adjustable curtain apparatus for use in room and pillar c

Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent

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Mobile concrete or rock cutting apparatus

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
Patent

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Mobile digging/cutting system

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable vertically
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Mobile dual auger continuous mining machine with multiple moveme

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...
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Mobile machine suspension system

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
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Mobile mining machine and method

Mining or in situ disintegration of hard material – Processes
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Mobile mining machine having tilted swing axis and method

Mining or in situ disintegration of hard material – Processes
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Modified rumble strip cutter

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

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Modified strip mining apparatus

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...
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Modular hydraulic mining tool with slurry inlet metering

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means
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Modular impact ripper assembly

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
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Molding pillars in underground mining of oil shale

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
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Motorized floor stripper with adjustable motion

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

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Mounting arrangement for cutter socket

Mining or in situ disintegration of hard material – Miscellaneous
Patent

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Mounting arrangement for impact rock-breaker

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

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Mounting block to rotate coal cutter bits

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...
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Mounting bracket for a working device

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Percussive-type cutter
Patent

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Mounting for material loading means in a mining tunnelling machi

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