WMachine
WAir bearing
WAnaesthetic machine
WAutopen
WBlock and tackle
WDemaco extruder
WDual quaternion
WElastic and inelastic collisions apparatus
WEuphonia (device)
WFour-slide
WGlazing jack
WGunderson Do-All Machine
WLifting equipment
WLoom
WMechanism (engineering)
WMachine industry
WMachine shop
WMachine tool
WMechanical paradox
WPaper machine
WPaper-ruling machine
WRecord press
WRoof seamer
WRotary transfer machine
WRotary union
WScrew axis
WSelf-propelled modular transporter
WSelf-replicating machine
WZ-mill
WStrand jack
WTablet press
WTortilla machine
WTunnel washer
WUseless machine
WWinding machine