POWER OPERATED LATHES AND BAND SAWS, TABLE FEED, MILLING MACHINES, SURFACE GRINDING MACHINES, NUMERICALLY CONTROLLED (NC) LATHES, NC MACHINING CENTERS, COMPUTER NUMERICALLY CONTROLLED (CNC) MACHINING CENTERS, CNC LATHES, AND CALIPERS IN THE NATURE OF WORKPIECE POSITIONING ELEMENTS FOR USE WITH ALL THE FOREGOING