DATA RECORDERS, ELECTRONIC PRINTERS, AND PERFORATORS AND STRIP PERFORATORS FOR USE THEREWITH, ELECTRICAL COUNTERS; CALIBRATORS; IMPULSE TRANSMITTERS FOR MECHANICAL DRIVES, IMPULSE TRANSMITTERS WITH BUILT-IN TIMER, IMPULSE TRANSFORMERS, IMPULSE COUNTERS, ELECTRICAL OR MECHANICAL RESETTABLE IMPULSE COUNTERS; ELECTRONIC RELAYS; HIGH-SPEED COUNTERS WITH OR WITHOUT ELECTRONIC ACCESSORIES, MECHANICAL COUNTERS, PRESSURE IMPULSE COUNTERS; TEST-DATA TRANSDUCERS, TEST-DATA ENCODERS, TIME ENCODERS, LONG...