To design,invent,manufacture,construct,purchase, import,assemble,equip,repair,hold,own,use, operate,mortgage,pledge,sell,distribute,exchange, export or deal in condensers,distillers,separators,conveyors and other appliances,devices,machinery and equipment and character for producing,distilling,condensing,refining,manufacturing,storing,transporting and distributing products and by-products of petroleum and chemicals and chemical compounds,with parts,accessories and appliances.