Deratization apparatus with remote terminals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 23, 1993
Issued Date -
N/A
app pub date -
Apr 17, 1989
filing date -
Apr 24, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A deratization system includes a plurality of remote terminals provided with vibrating apparatus, the remote terminals being controlled by a central transmitting unit. High frequency signals generated by the central transmitting unit are sent through the existing electrical net of a building to the remote terminals using the technique of simultaneously conveyed frequencies. A signal energizes all terminals or just a number of preselected terminals. In turn the remote terminals are sending in case of malfunction an error signal to the central transmitting unit.
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