Derek Plummer

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Cutter unit assemblies for excavating machines and to excavating

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Excavating machines

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
Patent

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Excavating machines

Mining or in situ disintegration of hard material – Processes – With material-handling
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Mine equipment

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Rock excavating arched tunnel forming machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
Patent

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Profile ID: LFUS-PAI-P-1256491

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