Electronic control circuits; electronic power controllers; electronic apparatus for remote control of signals; multimeters

Impressed current probe anodes used in through-wall installation to protect the internal surfaces of a structure such as a condenser water box, process tank, pressure vessel, or piping

Surgical apparatus and instruments for cardiac pacing, namely, cardiac probes, cardiac pacing leads, cardiac electrodes, and cardiac pacemakers

Portable Ultrasonic Detectors for Use in Locating Sound Waves Produced by an Ultrasound Generator