RAYTHEON

STATIONARY MACHINE TOOLS-NAMELY, ELECTRIC DUPLICATING APPARATUS, FOR FOLLOWING THE CONTOUR OF AN OBJECT AND/OR AUTOMATICALLY DUPLICATING THE SAME OR SHAPING A WORKPIECE IN ACCORDANCE THEREWITH, AND ELECTRIC VIBRATORY DRILLING AND/OR ABRADING TOOLS, IN PART OPERATED BY HAND, FOR APPLYING MECHANICAL VIBRATION TO A LOCAL REGION OF A SOLID OBJECT TO REMOVE PORTIONS OF SAID OBJECT OR ANOTHER OBJECT THEREFROM, AND PARTS AND COMPONENTS OF ANY OF THEM AND ACCESSORIES THEREFOR