Viscosimeters; [ aerometers; electric accumulators; alarms, namely, alarms for the detection of viscosity levels; ammeters; ] testing apparatus, not for medical purposes, namely, apparatus for analysis of viscosities; [ connections for electric lines; electric couplings; apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity, namely, electric wires and cables, voltage transformers, accumulators, voltage regulators, electric curr...