4. Boring or penetrating the earth
  5. With above-ground means to impact an earth-penetrating means

Bruce James

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Bi-directional adjustable energy dissipating and head loss...

Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate

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Bi-directional adjustable energy dissipating near zero...

Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate

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Packing device for rotary valves

Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate

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Percussive tool with high pressure fluid jet

Boring or penetrating the earth – With above-ground means to impact an earth-penetrating means
Patent

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Valve with actuating handle operable in different quadrants

Valves and valve actuation – Fluid actuated or retarded – Fluid and non-fluid actuators
Patent

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Profile ID: LFUS-PAI-P-1456003

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