4. Typewriting machines
  5. For line-spacing by incremental rotation of platen
  6. For multi-incremental rotation

Helmut Gelling

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Paper-feeding apparatus for a printer

Typewriting machines – For line-spacing by incremental rotation of platen – For multi-incremental rotation
Patent

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Rolling parallel printer

Printing – Selective or progressive – Bed and platen machines
Patent

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Profile ID: LFUS-PAI-P-689456

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