12 CONSTRUCTION MATERIALS-NAMELY, PIPE HANGERS AND ROUGHING IN BOX FORMS
13 FLUID MIXING VALVES; AIR MIXING VALVES; PRESSURE REGULATORS AND REDUCING VALVES; SELF-CLEANING FLUID STRAINERS; STEAM TRAPS FOR STEAM PRESSURE USES; AND PRESSURE EQUALIZING VALVES
21 ELECTRICAL CONTROL SWITCHES, ELECTRICAL MEASURING SWITCHES AND INSTRUMENTS, AND ELECTRICAL COMPONENTS
26 TEMPERATURE RECORDING THERMOMETERS; THERMOSTATIC TEMPERATURE REGULATORS; PNEUMATIC, BULB, AND HYGRO THERMOSTATS FOR CONTROL OF VALVES, AND DAMPERS USED TO REGULATE THE FLOW OF HEATING, AND COOLING MEDIUMS; ROOM CONTROL THERMOSTATS; PNEUMATIC THERMOSTATS; THERMOSTATICALLY CONTROLLED STEAM TRAPS; THERMOSTATICALLY CONTROLLED FLUID MIXING VALVES; AND HYGROSTATS
34 HAND AND POWER OPERATED DAMPERS FOR CONTROL OF AIR OR GAS FLOW, INCLUDING SUCH TYPES AS LOUVER, CONSTANT VELOCITY, HAND QUADRANT, SINGLE BLADE, AND ROUND DAMPERS; HEATING EQUIPMENT DAMPERS; AND HUMIDIFIERS
1888 AS TO THE WORD "POWERS", OCT. 7, 1959, AS TO THE DESIGN 1888 AS TO THE WORD "POWERS", OCT. 7, 1959, AS TO THE DESIGN APPLICANT DISCLAIMS ANY RIGHT IN THE WORD "CONTROL" APART FROM THE MARK AS SHOWN. THE DRAWING IS LINED FOR RED AND GREY
Trademark: 72170671
