4. Mining or in situ disintegration of hard material
  5. Hard material disintegrating machines
  6. Floor-working

Mark J. Del Signore

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Advancing heated annulus steam drive

Wells – Processes – With indicating – testing – measuring or locating
Patent

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Asphalt laying machine

Road structure – process – or apparatus – Apparatus – Material distribution means
Patent

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Barrier tool for polished bore receptacle

Wells – Packers or plugs – With expanding anchor
Patent

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Control fluid communication nipple

Wells – Valves – closures or changeable restrictors – Destructible element
Patent

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Cutting devices for mining and tunnelling machines

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

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Profile ID: LFUS-PAI-P-83106

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