Infrasonic frequency resonant circuit and method for use thereof
Instrument for monitoring the radiation hazard arising from elec
Instrument for testing and/or measuring electric magnitudes
Ion detector
Isotopic broad-band survey meter
Legs for trimming a tripod with an electrical test probe tip
Lighting current detector
Lightning and storm warning method and apparatus
Lightning detection apparatus and methodology
Lightning detection system utilizing triangulation and field amp
Lightning discharge identification system
Lightning strike detector
Lightning warning system
Logic test unit
Low capacitance measurement probe
Low capacitance measurement probe
Measurement system and method for determining the amount of elec
Meter lead holder device
Method and apparatus for contacting the lead of an article
Method and apparatus for defining an equipotential line or _surf