4. Printing
  5. Processes
  6. Transfer or offset

Karel Johan Schell

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Method and device for security printing

Printing – Processes – Transfer or offset
Patent

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Method for protecting a paper security document or...

Etching a substrate: processes – Gas phase etching of substrate – Application of energy to the gaseous etchant or to the...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1264743

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