- Impeller and counter driven flow meters (2)
- Liquid meters, nec (2)
- Totalizing meters, consumption registering (1)
- Water meters (4)
- Mechanical and electromechanical counters and devices (8)
- Electromechanical counters (5)
- Mechanical counters (2)
- Production counters (2)
- Speed indicators and recorders, vehicle (1)
- Taximeters (2)
- Controls, revolution and timing instruments (1)
- Gauges for computing pressure temperature corrections (2)
