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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 |