LandOfFree - US Patents - Listing for Fluid reaction surfaces (i.e., impellers),Specific blade structure

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Profiled blade of a fan and its application in motor-driven vent

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Reverse curve surface

Patent

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Prop-fan with improved stability

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface

Patent

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Propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Openwork

Reexamination Certificate

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Propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Irregular – flanged or channel forming blade surface

Patent

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Propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Irregular – flanged or channel forming blade surface

Reexamination Certificate

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Propeller and impeller blade configuration

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface

Patent

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Propeller blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Patent

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Propeller blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Patent

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Propeller blade configuration

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface

Utility Patent

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Propeller blade for aircraft propulsion

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Patent

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Propeller blade structures and methods particularly adapted for

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Propeller blade subassembly and method for making a propeller bl

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar

Patent

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Propeller construction

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Openwork

Patent

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Propeller fan

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Propeller fan

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Reexamination Certificate

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Propeller fan blading and hub therefor

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Irregular – flanged or channel forming blade surface

Patent

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Propeller for gaseous and fluidic media

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Propeller for marine propulsion device

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Reverse curve surface

Patent

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