4. Pumps
  5. Motor driven
  6. Internal-combustion engine

Rudolf Schaeffer

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Free piston engine

Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Reexamination Certificate

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Generic free-piston engine with transformer valve assembly...

Pumps – Motor driven – Internal-combustion engine
Reexamination Certificate

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Hydraulic transformer

Pumps – Intensifier
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2819508

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