4. Tool driving or impacting
  5. Drive controlled by relative axial movement of tool
  6. Drive motor controlled

John F. Kita

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Down-the-hole hammer

Tool driving or impacting – Drive controlled by relative axial movement of tool – Drive motor controlled
Patent

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Excavation tool

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements
Patent

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Grader blade with tiered inserts on leading edge

Earth working – Tool – standard or connection – Tool is transversely elongated blade
Patent

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Insert for mining tools and the like

Cutters – for shaping – Including holder having seat for inserted tool
Patent

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Method of mounting insert for mining tools and the like

Metal working – Method of mechanical manufacture – Assembling or joining
Patent

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Profile ID: LFUS-PAI-P-472010

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