MARSHALL MANIFOLD SYSTEM

METAL COUPLINGS FOR USE IN DELIVERING LIQUID PROPANE GAS TO LIQUID PROPANE GAS DEVICES; ACCESSORIES FOR USE IN DELIVERING LIQUID PROPANE GAS TO LIQUID PROPANE GAS DEVICES, NAMELY, METAL VALVES NOT BEING PARTS OF MACHINES, T-SHAPED CONNECTORS, MOUNTING BRACKETS, AND QUICK DISCONNECT COUPLINGS FOR USE WITH DELIVERING LIQUID PROPANE GAS TO LIQUID PROPANE GAS DEVICES; GAS DELIVERY SYSTEM COMPONENTS USED IN LIQUID PROPANE GAS APPLICATIONS, NAMELY, GAS MANIFOLDS OF METAL AND RELATED STRUCTURAL FITTINGS

GAS DELIVERY SYSTEM COMPONENTS USED IN LIQUID PROPANE GAS APPLICATIONS, NAMELY, GAS MANIFOLDS AND RELATED STRUCTURAL FITTINGS AS PARTS OF A HEATING SYSTEM

ACCESSORIES FOR USE IN DELIVERING LIQUID PROPANE GAS TO LIQUID PROPANE GAS DEVICES, NAMELY, NON-METAL FLEXIBLE PIPING, AND TUBING; PIGTAILS IN THE NATURE OF TUBING PRIMARILY OF NON-METAL