79067377
Feb 23, 2009
Mar 30, 2010
[Galvanometers; antenna parameter measuring apparatus; optical frequency metrology devices;] oscillators; oscillographs; [capacity measures for electric or magnetic meters and testers; phase indicators; magnetic meters and testers for measuring characteristics of magnetic fields; magnetic measuring apparatus and instruments, namely, electromagnetic apparatus and instruments used to generate or measure magnetic fields; ohmmeters; resistance measuring devices; watt-hour meters; electric loss indicators; indicators for electricity;] electromagnetic measuring detectors; [measuring apparatus and instruments for electricity, namely, electric meters; ammeters; voltmeters;] wavemeters; frequency meters; [vacuum tube characteristic measurement device; circuit testers;] watt meters
Electrical and Scientific Apparatus