LandOfFree - US Patents - Listing for Electricity: measuring and testing,Measuring, testing, or sensing electricity, per se,Frequency of cyclic current or voltage

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Fault location methods and apparatus using current pulse injecti

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Fault location methods and apparatus using current pulse injecti

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Fault location system with enhanced noise immunity

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Fault monitoring by detecting a polarity difference

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Fault test apparatus for conductors of multiconductor cable

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Ferromagnetic metal detector utilizing gradiometers positioned o

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Ferrous/non-ferrous metal detector using sampling

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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FET type sensor and a method for driving the same

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Fibre optical arrangement for measuring the intensity of an elec

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Field effect transistor monitors

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Field effect transistor type semiconductor sensor and method of

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Field effect transistor-type moisture sensor

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Field test instrument

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Filament for alkali metal ionization detector

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Filter having an automatically controlled variable cut-off frequ

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Filter which tracks changing frequency of input signal

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Flange and casing checking instrument

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Flaw detection system using microwaves

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Flexible resistive heat battery tester and holder

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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Floating driver circuit and a device for measuring impedances of

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

Patent

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