LandOfFree - US Patents - Listing for Mining or in situ disintegration of hard material,Cutter tooth or tooth head,Adjustable head

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Arm-supported cutting roll with effective length pivotally adjus

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Coal mining auger

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Cutter drum extension latching mechanism

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Cutting assembly including expanding wall segments of auger

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Cutting head with self-contained power source

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Extendable end assembly for a mine face cutting roller

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Reexamination Certificate

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Extensible and retraciable rotor arm cutting assembly

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Floor cutters for mineral winning ploughs

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Hewing or cutting roll

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Reexamination Certificate

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Method and apparatus for extending the cutter drum of a boring m

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Mining bit and holder

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Mining bit and holder

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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Pilot operated stepping directional valve and method for single

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Adjustable head

Patent

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