4. Electricity: measuring and testing
  5. Magnetic
  6. With means to create magnetic field to test material

Peter Haefner

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Method and apparatus for detecting ionizing radiation

Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Reexamination Certificate

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Web thickness measurement system

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2057936

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