Invention Grant
US09243944B2 Adjustable underground meter installation 有权
可调地下仪表安装

Adjustable underground meter installation
Abstract:
A pit liner includes an upper section, a lower section, at least one pin wherein each pin is connected to one of the upper section and the lower section, and at least one notch defined in at least one of the upper section and the lower section the lower section and the upper section sized to adjust with respect to each other.
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