Sposób i urządzenie do deratyzacji emitujące ultradźwięki

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专利权人:

Hi.Tech Innovation S.R.L.

发明人:

AMENDOLA, CARLO,ZACCO, GIOVANNI,COCOZZA, GIANFRANCO

申请号：

PL07726076

公开号：

PL2034821T3

申请日:

2007.06.19

申请国别(地区):

PL

年份:

2015

代理人:

摘要：

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.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/