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

John E Siefers

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

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Circuit board coupon tester

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

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Method for detecting the connectivity of electrical...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate

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