4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. Mixing of two or more solid polymers; mixing of solid...

Franz Stelzer

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Functionalized and polymerizable polymer

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate

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Rolling device for a displaceable cross frog

Railway switches and signals – Switches – Chairs and plates
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2522669

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