Apparatus and methods of forming sound attenuating laminates...

Apparatus for absorbing machinery sound

Apparatus for absorbing vibrations in an exhaust system of a veh

Apparatus for acoustic noise reduction of office automation devi

Apparatus for controlling exhaust gas in internal combustion...

Apparatus for damping acoustic vibrations in a combustor

Apparatus for damping noise from exhaust air outlets

Apparatus for filtering ultrasonic noise within a fluid flow...

Apparatus for filtering ultrasonic noise within a fluid flow...

Apparatus for increasing directivity of a sound source

Apparatus for reducing noise in the jet engine

Apparatus for reducing the exhaust noise of internal combustion

Apparatus for repairing or protecting an engine exhaust system

Apparatus for retaining a component that transfers...

Apparatus for suppressing internally generated gas turbine engin

Apparatus for the combined production of electrical energy and h

Apparatus for the retroreflection of sound

Apparatus for transmitting sound in a motor vehicle

Apparatus for treating a gas stream

Apparatus for treating flowing working gases particularly to red