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Dot-matrix line printer

Typewriting machines – Including adjustment for optimum printing plane – By adjustment of platen relative to carriage
Patent

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Dot-matrix line printer

Typewriting machines – Carriage or carriage-moving or movement-regulating mechanism – Carriage-retarder mechanism
Patent

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Dot-matrix line printer

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Dot-matrix print controller

Typewriting machines – Typing by other than type-face or type-die – Thermal
Patent

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Dot-matrix print head and apparatus for supporting pivotable arm

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Dot-matrix print head, in particular for magnetic ink printers

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Dot-matrix printer and printing method

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Reexamination Certificate

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Dot-matrix printer with dot counter and temperature sensor for e

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Dot-matrix printer with dot counter for efficient high-quality p

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Dot-matrix printer with font cartridge unit

Typewriting machines – Including control of format and selection of type-face by...
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Dot-matrix printer with font cartridge unit

Typewriting machines – Including control of format and selection of type-face by...
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Dot-matrix printer with impact force determination

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Dot-matrix printer with pattern checking and pattern correcting

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Double journal roll feed

Typewriting machines – Sheet or web – For feeding plural record media concurrently or selectively
Patent

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Double print head

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Double-side printing control method

Typewriting machines – Including control of format by programmed-control-system
Patent

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Double-side printing system

Typewriting machines – For typing on reverse surface of record-medium
Patent

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Double-sided print engine assembly

Typewriting machines – For typing on reverse surface of record-medium
Reexamination Certificate

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Double-sided printing apparatus

Typewriting machines – Sheet or web – For feeding web record-medium
Reexamination Certificate

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Draft-paper rack for a computer

Typewriting machines – Means auxiliary to typewriting function – Attachment for holding an article
Patent

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