Blower noise silencer
Blower pipe with silencer
Boiler noise suppressor
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 silencer for an underwater voice communicator
Built-in vacuum cleaning system with improved acoustic damping d
Bumper/muffler assembly
Bypass muffler
Car silencer for absorbing sound and exhaust pollutants
Carburetor
Carpet cleaning machine
Catalyst muffler system
Catalytic converter for a muffler of a small engine
Catalytic muffler and method
Catalyzer-containing muffler
Chambered-core motorcycle-exhaust apparatus