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