4. Electricity: measuring and testing
  5. Testing potential in specific environment
  6. Voltage probe

Walter S. Bierer

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AC phasing voltmeter

Electricity: measuring and testing – Testing potential in specific environment – Voltage probe
Reexamination Certificate

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Long range alternating current phasing voltmeter

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

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Long range phasing voltmeter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison
Reexamination Certificate

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Voltage detector with improved accuracy

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural inputs
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2523299

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