4. Typewriting machines
  5. For line-spacing by incremental rotation of platen
  6. By pawl and ratchet wheel drive

Charles D. Bleau

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Side flap fold apparatus for a disk envelope

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means
Patent

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Signal controlled indexing rate shifter for a typewriter

Typewriting machines – For line-spacing by incremental rotation of platen – By pawl and ratchet wheel drive
Patent

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Profile ID: LFUS-PAI-P-1350794

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