Invention Grant
US09546466B2 Dish for use in a manhole 有权
用于人孔的菜

Dish for use in a manhole
Abstract:
A dish for use in a manhole having a manhole cover covering a manhole opening and a frequency transmitting system for use in a manhole are provided. The dish and the frequency transmitting system is configured to transmit a signal to a network through the manhole cover. The signal is generated by a sensor unit disposed within the manhole and configured to detect the conditions of the manhole.
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