Sound level adjustable muffler
Sound muffler for exhausts of internal combustion engines
Sound muffler for explosive devices
Sound muffling baffle for drainage device
Sound muting assembly for gas flow duct systems
Sound reducing means
Sound silencing and filtering apparatus
Sound-attenuating muffler for exhaust gases
Sound-attenuating muffler having reduced back pressure
Soundproofing casing for pneumatic percussion drill
Spark arrester and engine muffler
Spark arrester and muffler construction
Spark arrester silencer
Spherical muffler
Spiral flow baffle system
Spiral muffler
Spring loaded catalytic converter with externally mounted...
Spring wire muffler core
Stamp formed exhaust muffler with conformal outer shell
Stamp formed muffler