4. Rotary kinetic fluid motors or pumps
  5. With lubricating, sealing, packing or bearing means having...

Rudolf Fehlau

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Multi-stage centrifugal pump incorporating a sealed thrust beari

Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having...
Patent

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Pump closure fastening means

Receptacles – Closures – Having means for securing or retaining closure in its closed...
Patent

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Profile ID: LFUS-PAI-P-728348

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