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Noise absorption system having active acoustic liner

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Noise attenuating and air streamlining spiral

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Noise attenuating sound resonator for automotive cooling...

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate

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Noise cancellation device for centrifugal blower

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Noise control device for centrifugal blower

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Noise killing system of fans

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Noise reduced centrifugal blower

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Noise reduction mechanism of fan device and molding method...

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate

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Noise reduction of aircraft flap

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate

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Noiseless air-actuated turbine-type vibrator with muffler

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Patent

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Nonlinearly stacked low noise turbofan stator

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...
Reexamination Certificate

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