Fabric retainer for acoustic structure and methods of...
Fan inlet flow controller
Fan inlet flow controller
Fan inlet flow controller
Fan powered silencing terminal unit
Fan shroud with built in noise reduction
Fiberglass reinforced plastic damping material
Filter muffler
Fine jet control-type sound absorption system
Firearm sound suppressor baffle
Fireplace flue ambient noise reducing device
Five-layer sound absorbing pad: improved acoustical absorber
Fixed geometry controlled entrainment ventilated convergent nozz
Fixing structure of tail pipe of exhaust pipe
Flapper configuration for marine exhaust system
Flapper finger valve
Flapper finger valve assembly
Flat panel diffuser
Flat panel diffuser
Flattened venturi, method and apparatus for making