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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Class 400/480 - Including control of key action (e.g., buffer, etc.)


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein significance is attributed to the
No. of patents: 19
Last issue date: 10/07/2008


NumberTitleIssue Date
7433177Keyboard with recharge function
A keyboard with a recharge function for a computer system having a rechargeable wireless peripheral is described. The keyboard includes a charger and a charging dock. The charger is disposed inside the keyboard and charges the rechargeable wireless peripheral with p...
10/07/2008
7332687Keyboard structure and keyboard assembly method
A keyboard structure including a base, a key-cap, and a linking-up mechanism is provided. The key-cap is disposed on the base, and the linking-up mechanism is connected between the base and the key-cap. The linking-up mechanism includes a first frame and a second fr...
02/19/2008
7131780Keyboard
A keyboard has a single row of eight multi-position keys with the letters arranged in a standard QWERTY keyboard configuration. The eight keys correspond to the eight fingers used when touch typing; each finger operates one key, and that key contains all the letters...
11/07/2006
7048456Keyboard arrangement
The invention relates to a keyboard arrangement and a method for detecting an input character. In particular the invention relates to a method and arrangement for reducing the number of keys in a QWERTY-keyboard (20) or the like. One idea of the invention is ...
05/23/2006
6980095Illuminated vehicle remote entry device
A remote keyless entry electroluminiescent (EL) device includes at least one depressible button segment for activating a vehicle function. The entry device includes an upper housing with at least one aperture in the upper housing. An EL film is integral to the upper...
12/27/2005
6939066Hand-held, freestanding, double-sided electronic keyboard
This invention is a keyboard apparatus with front and back key functionality. The body of the apparatus is held in the hands, supported by the palms. This leaves both of the thumbs and all of the fingers free to operate the key functionality, while the apparatus is ...
09/06/2005
6935797Keyboard with built-in microphone
An alphanumeric keyboard has a plurality of alphanumeric keys and includes at least one built-in microphone. The at least one microphone is controlled by a processor such that the at least one microphone is able to be operated in an automatic mode. When in the autom...
08/30/2005
6857800Method for inputting different characters by multi-directionally pressing a single key more than one time
The invention is to provide a method for inputting different characters by multi-directionally pressing one single key of a portable electronic device more than one time, the key having a plurality of protuberances on an underside and a circuit board having a plural...
02/22/2005
6824321Keypad assembly
A keypad assembly utilizes touch-detecting apparatus such as force sensors or touchpad assemblies for registering key presses. In exemplary embodiments, the keypad assembly is suitable for use in electronic devices such as a mobile telephones, calculators, hand-held...
11/30/2004
6808328Shiftable keyboard tray and method of use
A shiftable keyboard tray comprising a base, a carriage for support of a keyboard movable on the base, and a palm rest movable on the base offset from the carriage and operably connected to the carriage through a coupler configured to enable movement of the carriage...
10/26/2004
6733196Stroke-limited key structure and keyboard including the structure
The present invention relates to a stroke-limited key structure and a keyboard including the key. The key structure includes a base, a scissors-shaped member, and a cap. The scissors-shaped frame is disposed on the base, and the cap is disposed on the scissors-shape...
05/11/2004
6698957Foldable keyboard with point stick
The present invention relates to a foldable keyboard, and more particularly, to a foldable keyboard adapted for a point stick and/or at least one hot key. Two or more keypad portions are hingably connected by a connection board on which a point stick or a...
03/02/2004
6612761Electronic apparatus
In an electronic apparatus, a pressing of keys other than a print key is detected when the key is continuously in a pressed state for at least two periods in a key scan period. The pressing of the print key is detected when the print key is continuously i...
09/02/2003
6307739Computer system form factor
A form factor for use in the manufacture of a portable computer includes a U-shaped member having at least two distinct elements attached together. In one form factor, the U-shaped member includes two distinct elements: a unitary wall element having a fir...
10/23/2001
6102594Keyboard for touch typing using only one hand
Keyboard for one-handed touch typing derived from a normal Sholes keyboard, where each character-key is assigned two characters (for instance T/Y), thereby reducing the number of keys to approximately half the number of keys on a normal Sholes keyboard. T...
08/15/2000
6056458Computer keyboard with Z-axis input means
A computer keyboard with Z-axis input means is characterized in that at least one scrolling means compatible with that of a mouse, a cursor moving means and at least one mouse button are integrated on a keyboard with or without multimedia hotkeys. The nov...
05/02/2000
4795888Variable keystroke pressure apparatus
A keybaord which is capable of varying the pressure required for the keystroke is provided and comprises an inflatable arrangement being a variable pressure bladder which fits over the keyboard between the base plate and the keys. The operator may vary th...
01/03/1989
3938642Magnetic key touch control
The "touch" or "feel" of a key in a keyboard is controlled by a system of permanent magnets. A first magnet is attached to one end of a key lever and the key lever is pivoted intermediate its ends. A bias spring is provided to normally bias the key lever ...
02/17/1976
3934696Keyboard touch control
A keylever touch control mechanism for typewriters includes keylevers mounted on a common pivot which spans the distance between the spaced side frames of the typewriter. The keylevers are supported in their rest position by a plurality of underlying leaf...
01/27/1976
 
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