4. Fluid reaction surfaces (i.e., impellers)
  5. Unsymmetrical impeller or dissimilar working members

Takuro Hayashi

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Active noise control apparatus

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within duct
Reexamination Certificate

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Impeller for use in cooling dynamoelectric machine

Fluid reaction surfaces (i.e. – impellers) – Unsymmetrical impeller or dissimilar working members
Patent

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Three-dimension active silencer

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1812866

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