Voltmeters; Acetylene regulators; Automatic indicators of valve position or orientation; Fire hose nozzles; Fire suppression systems and component parts thereof, for use in homes, labs, vehicles, comprised of charged bottles, charge gauges, mounting bases and straps, pull cables, nozzles, fittings, tubing, and stickers; Oxygen regulators; Pressure indicating plugs for valves; Pressure measuring apparatus; Pressure regulators for thermal printers cryogenic liquids; Pressure regulators for ther...