pre-filters for keeping sand, dirt, metal and/or water from entering the air intake opening to internal combustion, turbine or electric enginesmotors; perforated horn covers for covering the inlet opening for horns on land vehicles

Prefilters for Keeping Sand and Dirt Particles from Entering the Air Intake Opening to Internal Combustion Engines in Land Vehicles and Perforated Horn Covers for Covering the Outlet Opening for Horns on Land Vehicles