- Industrial flow and liquid measuring instruments (1)
- Flow instruments, industrial process type (1)
- Fluidic devices, circuits, and systems for process control (2)
- Magnetic flow meters, industrial process type (1)
- Industrial process measurement equipment (1)
- Computer interface equipment, for industrial process control (1)
- Digital displays of process variables (1)
- Telemetering instruments, industrial process type (1)
- Water quality monitoring and control systems (3)
- Boiler controls: industrial, power, and marine type (1)
- Industrial process control instruments (1)
