Belleville washer spring type pulsation damper, noise attenuator
Bellows type exhaust tube
Blast compression wave absorbing device
Blocking devices for hollow structures
Blocking devices for hollow structures
Blowdown and venting jet noise suppressor
Blower noise silencer
Blower pipe with silencer
Board building material, board building material producing...
Boiler noise suppressor
Brake rotor silencer apparatus
Branch take-off and silencer for an air distribution system
Branch take-off and silencer for an air distribution system
Broad band acoustic attenuator
Broad band low frequency passive muffler
Broadband noise resonator
Bubble noise reduction
Bubble silencer for an underwater voice communicator
Built-in vacuum cleaning system with improved acoustic damping d
Bulk acoustic absorber panels for use in high speed gas flow env