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Class Information
Number: 405/89
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Uniform discharge
Description: Method or apparatus wherein the water gate passes only a specific or predetermined volume of liquid.

Patents under this class:

Patent Number Title Of Patent Date Issued
4549837 Penstock Oct. 29, 1985
4224156 Weir skimmer Sep. 23, 1980

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