4. Electric heating
  5. Metal heating
  6. By arc

Reijo Lappalainen

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Carbon nitride preparation method

Chemistry of inorganic compounds – Nitrogen or compound thereof – Carbon containing
Reexamination Certificate

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Laser marking method and a metal surface marked by this method

Electric heating – Metal heating – By arc
Patent

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Method for the determination of the stresses occurring in...

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified load or strain transmission device from specimen...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1958033

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