4. Fluid handling
  5. Systems
  6. With running joint between movable parts of system

Peter L. Madonna

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Automatic control system for rock drills

Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent

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Hand held water drilling apparatus

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – With valve
Patent

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Method and apparatus for producing a high-velocity particle...

Abrading – Abrading process – Utilizing fluent abradant
Utility Patent

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Method and apparatus for producing a high-velocity particle...

Abrading – Abrading process – Utilizing fluent abradant
Reexamination Certificate

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On-off dump valve

Fluid handling – Systems – With running joint between movable parts of system
Patent

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Profile ID: LFUS-PAI-P-1540118

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