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Ten-finger typewriter keyboards

Typewriting machines – Key-board or key lever-actuating mechanism – For foreign-language typewriter
Patent

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Ternary chord-type keyboard

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board having multiple-character – multiple-movement keys
Patent

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Thin keyboard and components for electronics devices and...

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

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Thin keypad assemblies and components for electronics...

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

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Thin keypad assemblies and components for electronics...

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

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Thin keypad assemblies and components for electronics...

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

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Thin keypad assemblies and components for electronics...

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

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Touch checking key tops for keyboard

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

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Touchpad overlay with tactile response

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

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Touchpad overlay with tactile response

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

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Two sensor movement

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

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Typewriter keyboard

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

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Typewriter keyboard layout

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

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Typewriter with pivoting keyboard

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

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Typing power

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

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