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Earth engaging cutter bit

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

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Earth engaging cutter bit

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

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Eccentrically driven percussive tools for treating materials

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable bit
Patent

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Embossed washer

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Wear shield or replaceable wear sleeve
Reexamination Certificate

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Endless chains comprised of interdigitated link elements having

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Endless-chain type head
Patent

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Endless chains comprised of interdigitated link elements having

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Endless-chain type head
Patent

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Erosion resistant cutting bit with hardfacing

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

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Excavating head with pick-controlled water supply

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

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Excavating tool cutting insert

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...
Patent

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Excavating tool cutting insert

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...
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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Extraction undercut for flanged 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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