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Multi-row keyboard for typewriters or similar machines

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board including row of keys having different heights
Patent

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Multifunctional micropocessor input device

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent

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Multilingual keyboard system

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent

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Multimedia keyboard device having game rods on each end

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

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Multiple format keyboard

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board arranged according to character location
Patent

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Nail saver extension keys

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

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No-impact keyboard

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

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Non-linear ergonomic keyboard

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

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Non-planar ergonomic keyboard

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

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One handed sequential alpha numerical keyboard

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

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One handed-keyboard

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

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One-handed alphanumeric keyboard and method

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

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One-handed keyboard

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

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Operator panel for printers

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent

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Optical keyboard with common light transmission members

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent

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Optically coded keyboard arrangement

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent

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Pagewidth printer and computer keyboard combination

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

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Pagewidth printer that includes a computer-connectable keyboard

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

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Parallel guide for push-button switches with multiple buttons

Typewriting machines – Key-board or key lever-actuating mechanism – Key lever or space-bar mounting structure
Patent

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Pen-sized keyboard arrangement

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

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