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V-blade impeller design for a regenerative turbine

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Reexamination Certificate

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V-blade impeller design for a regenerative turbine

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Reissue Patent

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Vacuum cleaner fan

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
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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Vacuum pump

Rotary kinetic fluid motors or pumps – Including destructible – fusible – or deformable non-reusable...
Reexamination Certificate

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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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Vacuum 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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Vacuum pump

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

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

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Vacuum pump

Rotary kinetic fluid motors or pumps – Runner has spirally arranged blade or fluid passage – Extending along runner axis
Patent

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Vacuum pump

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Patent

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Vacuum pump

Rotary kinetic fluid motors or pumps – Including destructible – fusible – or deformable non-reusable...
Reexamination Certificate

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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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Vacuum pump

Rotary kinetic fluid motors or pumps – Runner has spirally arranged blade or fluid passage – Extending along runner axis
Reexamination Certificate

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Vacuum pump

Rotary kinetic fluid motors or pumps – Including heat insulation or exchange means
Patent

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Vacuum pump

Rotary kinetic fluid motors or pumps – Runner has spirally arranged blade or fluid passage – Extending along runner axis
Reexamination Certificate

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Vacuum pump

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Patent

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