DOUBLE-PIPE
Spillant Containment Piping Systems Comprising: a Fluid-Carrying Pipe, of PVC, Stainless Steel, Copper, Fiber Glass, Polypropylene or Polyethylene, and Fittings Therefor, and Supports for the Pipe, All Located within and Surrounded by an Outer, Continuous, Corrosion-Resistant Jacket Made Primarily of Non-Metal Materials
Cancelled · January 22, 1981 · 73293998 ·