LandOfFree - US Patents - Listing for Electricity: measuring and testing,Measuring, testing, or sensing electricity, per se,Polyphase

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3-phase power meter having a display board

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Apparatus and method for detecting power of a three phase altern

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Apparatus and method for measuring variable frequency power

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Apparatus for measuring output DC current of rectifier devices

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Arrangement for measuring an electrical power or energy

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Circuit apparatus for sensing line conditions in a three...

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Reexamination Certificate

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Circuit arrangement comprising input circuits to find a power ou

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Circuit for measuring voltages in a three-phase installation, in

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Current measuring apparatus

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Device for monitoring load

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Device for monitoring the unbalance of the electric power demand

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Direct current measuring system for rectifiers

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Direct current measuring system for rectifiers

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electrical measuring device

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electronic energy consumption meter with input transformer havin

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electronic measuring device for a polyphase network, in particul

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electronic solid state Q-hour meter and/or combination Q-hour an

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electronic three-phase four-wire system watt-hour meter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electronic three-phase watt-hour meter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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Electronic type polyphase electric energy meter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Patent

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