73184191
Aug 31, 1978
Jun 29, 1982
Nonautomatic Fluid Control Valves, Gate Valves, Butterfly Valves, and Check Valves, and Parts Thereof, Excluding Fire Protection Valves
Metal GoodsFluid Control Valves, Being Parts of Water Supply Systems-Namely, Gate Valves, Butterfly Valves and Check Valves, and Parts Thereof, Excluding Fire Protection Valves
Environmental Control Apparatus