LandOfFree - US Patents - Listing for Typewriting machines

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Automatic typefont loader

Typewriting machines – Including type-set-assemblage mounted on carrier and... – Plural type-set-assemblages selectively movable from a...

Patent

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Automatic work correcting system

Typewriting machines – Means auxiliary to typewriting function – Means for correcting typing errors

Patent

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Automatically adjustable delay function for timed typamatic

Typewriting machines – Including delay means for preventing malfunction in powered... – Delay of sequential character rate in programmed-control...

Patent

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Automatically interchangeable type wheel type printing apparatus

Typewriting machines – Including type-set-assemblage mounted on carrier and... – Plural type-set-assemblages selectively movable from a...

Patent

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Automatically returned paper ball assembly of a printer

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

Patent

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Auxiliary device for typewriter right margin correction

Typewriting machines – Carriage or carriage-moving or movement-regulating mechanism – Carriage-return mechanism

Patent

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Auxiliary print media tray for printer

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

Reexamination Certificate

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Auxiliary print media tray for printer

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

Reexamination Certificate

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Auxiliary web feeder attachment for printer

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

Patent

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Avoiding memory fragmentation in printers

Typewriting machines – Including selection of type-face by... – Including error detection

Patent

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