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• • <br />.~`~ <br />vibra-tech <br />LARIMER COUNTY PLANNING DEPARTMENT <br />April 1, 1986 <br />Page 2. <br />In addition to this, yon. might also note that under certain circumstances, <br />the Vibra-Tech VIBRA-MAF' technique can be employed to suppress the Lower <br />frequencies at which structures respond, and therefore greatly reduce the <br />human subjective reaction to blast vibrations. <br />Perhaps when you have had the opportunity of going over the enclosed material <br />in some depth, it might be possible for me to visit you, and answer any <br />questions you or your colleagues might have: <br />Very truly yours, <br />John L'. H. Sim<nance <br />Area Manager <br />JLNS:rmn <br />Enc. <br />