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Collapsible keyboard

Typewriting machines – Key-board or key lever-actuating mechanism
Reexamination Certificate

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Collapsible keyboard with supporting structure

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board including keys grouped to facilitate positioning...
Reexamination Certificate

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Collapsible printer case

Typewriting machines – Means auxiliary to typewriting function – Means for collapsing typewriter or support for record-medium...
Patent

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Collapsible typing keyboard tray

Typewriting machines – Key-board or key lever-actuating mechanism
Patent

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Color converter for monochrome dot matrix printers

Typewriting machines – Including interposed inking device for record-medium – Including mechanism for shifting ribbon laterally at...
Patent

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Color discrimination apparatus for color ink ribbon

Typewriting machines – Including interposed inking device for record-medium – Ribbon – per se
Patent

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Color image forming apparatus with drive power transmission mech

Typewriting machines – Sheet or web – Including friction-feed means
Patent

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Color image recording method

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

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Color image-forming machine and method of forming a correction t

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

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Color ink ribbon

Typewriting machines – Including interposed inking device for record-medium – Ribbon – per se
Patent

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Color ink ribbon and printer using this ribbon

Typewriting machines – Including interposed inking device for record-medium – Ribbon – per se
Patent

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Color ink ribbon and serial color printer using the same

Typewriting machines – Including interposed inking device for record-medium – Ribbon – per se
Patent

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Color ink ribbon for thermal printer

Typewriting machines – Including interposed inking device for record-medium – Ribbon – per se
Patent

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Color printer

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

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Color printer

Typewriting machines – Sheet or web – Including sheet guide
Patent

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Color printer

Typewriting machines – Including interposed inking device for record-medium – Including mechanism for shifting ribbon laterally at...
Patent

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Color printer

Typewriting machines – Platen or platen-moving mechanism – For movement of platen other than for line-spacing
Patent

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Color printer

Typewriting machines – Including interposed inking device for record-medium – Ribbon-reversing mechanism
Patent

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Color printer and ink ribbon therefor

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

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Color printer and method of feeding paper by tension rollers

Typewriting machines – Sheet or web – Including friction-feed means
Reexamination Certificate

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