4. Fluid reaction surfaces (i.e., impellers)
  5. Specific blade structure
  6. Coating, specific composition or characteristic

Roberto Cerruti

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Pumping stage for a vacuum pump

Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Reexamination Certificate

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Rotor for turbomolecular pump

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Coating – specific composition or characteristic
Patent

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Rotor for turbomolecular pump

Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Patent

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Turbomolecular pump

Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Patent

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Vacuum pump

Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Reexamination Certificate

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Profile ID: LFUS-PAI-P-514770

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