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Class Information
Number: 137/87.02
Name: Fluid handling > Self-proportioning or correlating systems > Liquid level responsive
Description: Subject matter wherein the sensor is detecting the variation in an uppermost horizontal surface of the liquid in one of the flow lines and in response thereto the sensor controls the flow in the other flow line.










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5209254 Water and sewerage system for construction, and protection for the same May. 11, 1993
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