72444331
Dec 21, 1972
Feb 4, 1975
ABRASIVE MACHINING EQUIPMENT OF THE TYPE WHICH IMPARTS A ROTARY OSCILLATORY MOVEMENT TO A THREE-DIMENSIONAL ABRASIVE FORM WHILE PRESSING THE FORM INTO A FRIABLE WORKPIECE IN THE PRESENCE OF FLUSHING BETWEEN THE ABRASIVE FORM AND WORKPIECE WHEREBY A MIRROR IMAGE OF THE ABRASIVE FORM IS ABRADED INTO THE WORKPIECE
Yarns and Threads