For example, Japanese patent abstract JP 53152662 shows one arrangement for drilling microscopic holes using {TAIL ~ a multi frequency deflector} having {HEAD ~ selectable frequencies} f1 . .  
For example , Japanese patent abstract JP 53152662 shows one arrangement for drilling microscopic holes using { TAIL ~ a multi frequency deflector } having { HEAD ~ selectable frequencies } f1 . .
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH