Manually Operated Valves (Not Parts of Machines) Made of Common Metal, Metal Taps, and Parts Thereof

Valves (Parts of Machines), Non-Automatic Mechanically Operated Valves, Hydraulically Operated Valves, Pneumatically Operated Valves, [Soot Blowers for Cleaning Boilers and Heat Exchangers], and Parts Thereof

Valves Operated Automatically by Electric Current Control, by Solenoid, by Temperature or Other Changes in Physical Conditions; Pressure Gauges and Gauge Syphons for Steam, Water or Air; Water Gauges; Thermometers; Dial Thermometers; Electric Controlling Apparatus for Steam, Water, Gas, Air or Other Valves; [Digital Read-Out Positional Indicators for Use in Conjunction with Machine Tools; Data Collection and Retrieval Systems Using Punch Cards, Magnetic Tapes or Other Informational Media;] Regulators for Feed Water; Pressure Regulators; Electrically Operated Water Level Indicators and Alarms; and Parts Thereof