4. Tool driving or impacting
  5. Means to drive tool about an axis
  6. Means to hold and relatively rotate sections of tool shaft

Kenneth L. Larsson

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Drill string element

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
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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Threaded coupling

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Patent

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Profile ID: LFUS-PAI-P-1137652

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