ARTIFICIAL ABRASIVES FOR RESURFACING COMMUTATORS OF ELECTRIC MOTORS AND GENERATORS; AND COMMUTATOR CLEANING STONES

DEMAGNETIZERS; ELECTRIC ETCHERS; AND PORTABLE ELECTRIC BLOWERS

GROWLERS (ARMATURE TESTING DEVICES); COIL TESTERS; INSTRUMENTS FOR ELECTRIC TESTING-NAMELY,VOLTAGE TESTERS, VOLT AMPERE AND OHM TESTERS, HIGH VOLTAGE INSULATION TESTERS, SNAP-AROUND VOLT AMMETERS, MEGOHM INSULATION TESTERS AND VOLTMETERS, AND CIRCUIT TESTERS; PROTECTIVE MASKS AND REFILLS; EYE SHIELDS AND FACE SHIELDS