SELAS

[ GAS DISTRIBUTION APPARATUS AND PARTS THEREOF WHICH INCLUDE A UNIT FOR STORAGE AND DISTRIBUTION OF COMBUSTIBLE GAS; ] FLUID FUEL BURNERS AND PARTS THEREFOR FOR USE WITH HEATING APPARATUS; GAS FIRED INDUSTRIAL HEATING EQUIPMENT-NAMELY, FURNACES, KILNS, OVENS, DRYERS AND LEHRS; AND LIQUID HEATING AND VAPORIZING APPARATUS USING FLUID AS A SOURCE OF HEAT [, ESPECIALLY FOR LIQUID PROPANE AND BUTANE ]