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Aerodynamic rotor blade of composite material fabricated in one

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

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Air foil blade and methods of making same

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Apparatus for reducing thermal stress in turbine airfoils

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

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Bifoil blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Blade for a wind motor

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Blade for a wind turbine and a method of assembling...

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

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Blade for windmill

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Blade of composite materials and its manufacturing process

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

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Blade provided with a horizontally-wound spar, and a method...

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

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Blade structure for use in a windmill

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Braided spar for a rotor blade and method of manufacture...

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Ceramic matrix composite turbine engine vane

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

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Co-cured composite fan blade and method

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

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Composite aerodynamic rotor blade assembly

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

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Composite blade root structure

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

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Composite material blade with twin longeron and twin box structu

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar
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Composite material variable pitch blade for helicopter rotor...

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

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