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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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Apparatus for removing roofing material

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
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Apparatus for removing shingles and the like

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

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Apparatus for removing surface coverings and methods for...

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

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Apparatus for retaining a tool in machinery

Mining or in situ disintegration of hard material – Miscellaneous
Patent

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Apparatus for roadway surface reclaiming drum

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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Apparatus for roughening concrete slat surfaces

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

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Apparatus for roughening road surfaces

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
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Apparatus for routering a surface and a cutting head and tool pi

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
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Apparatus for sulfur melting by lateral displacement of heating

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
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Apparatus for supporting the roof of an underground mine working

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means
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Apparatus for surface profiling

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

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Apparatus for the mining of mineral matter, especially coal

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
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Apparatus for the underground operation of a movable mining mach

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

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Apparatus for transmitting data

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
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Apparatus for underwater retrieval, selection and concentration

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
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Apparatus for use in under-ground long wall mine workings

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Sidewall-working
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Apparatus for use with cutting drums of mineral machines

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

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Apparatus for ventilating cutter heads of mineral mining machine

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Cleansing fluid passage
Patent

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Apparatus for water jet and impact drilling and mining

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