4. Electric heating
  5. Metal heating
  6. Of cylinders

Roland Koch

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Device for internal welding of pipes or the like

Electric heating – Metal heating – Of cylinders
Patent

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Measuring device, and method for locating a partial discharge

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Reexamination Certificate

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Profile ID: LFUS-PAI-P-840206

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