73505122
Oct 22, 1984
Jul 28, 1987
METAL FITTINGS FOR USE IN SANITARY PIPING SYSTEMS, NAMELY, FERRULES, ELBOWS, TEES, CROSSES, X'S, Y'S, CHECK VALVES, CAPS, SUPPORTS, ADAPTERS, REDUCERS, CLAMPS AND HANGERS, AND GASKETS THEREFOR
Environmental Control Apparatus