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Back-fire resistant lock seam for muffler shells

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Baffle

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Baffle equipped with flap assembly

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate

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Baffle for sound suppression

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate

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Baffle plate of discharge muffler for hermetic reciprocating...

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate

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Base for a loudspeaker enclosure

Acoustics – Sound-modifying means – Mechanical vibration attenuator
Patent

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Baseball bat having the functions of resonators and microphones

Acoustics – Sound-modifying means – Intensifying horn
Patent

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Bass amplifying system for radios

Acoustics – Sound-modifying means – Housing or enclosure
Patent

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Beam dampers for damping the vibrations of the skin of reinforce

Acoustics – Sound-modifying means – Mechanical vibration attenuator
Patent

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Belleville washer spring type pulsation damper, noise attenuator

Acoustics – Sound-modifying means – Mechanical vibration attenuator
Patent

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Bellows type exhaust tube

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Blast compression wave absorbing device

Acoustics – Sound-modifying means – Sound absorbing fence or screen
Reexamination Certificate

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Blocking devices for hollow structures

Acoustics – Sound-modifying means – Housing or enclosure
Reexamination Certificate

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Blocking devices for hollow structures

Acoustics – Sound-modifying means – Housing or enclosure
Reexamination Certificate

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Blowdown and venting jet noise suppressor

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate

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Blower noise silencer

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Blower pipe with silencer

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Board building material, board building material producing...

Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate

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Boiler noise suppressor

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Brake rotor silencer apparatus

Acoustics – Sound-modifying means – Mechanical vibration attenuator
Patent

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