4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. With electromagnetic field

Robert L. Krupa, Jr.

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Electrical ammeter including an induction coil

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With electromagnetic field
Patent

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Electrical measuring meter and method including a calibrating el

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With electromagnetic field
Patent

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Snap-in meter

Electricity: conductors and insulators – Boxes and housings – With electrical device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-66405

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