HI. Tech Innovation S.R.L.
|HI. Tech Innovation S.R.L. Patent applications|
|Patent application number||Title||Published|
|20090175129||ULTRASOUND EMISSION DERATIZATION METHOD AND DEVICE - An ultrasound emission deratization device is described, comprising generation means (A, B, D) of a first ultrasound frequency (P1) and a second ultrasound frequency (P2) which are alternated, with a predetermined mean emission time for each of the two, and randomly variable time range pauses between a minimum and a maximum between one and the other.||07-09-2009|