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Class Information
Number: 434/227
Name: Education and demonstration > Occupation > Keyboard operation (e.g., typing, key punching, etc.)
Description: Subject matter relating to the proper technique of operating the keyboard of a machine.










Sub-classes under this class:

Class Number Class Name Patents
434/228 Means for selectively illuminating character on simulated keyboard 5
434/230 Means for selectively producing sound of character 0
434/229 Means for selectively rendering key operable or inoperable 10
434/233 Means on hand or finger for indicating finger to be used 16
434/231 Practice keyboard having individually depressible keys 6


Patents under this class:
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Patent Number Title Of Patent Date Issued
8562541 Method and system for quantitative assessment of visual motion discrimination Oct. 22, 2013
8475391 Method and system for quantitative assessment of spatial distractor tasks Jul. 2, 2013
7739595 Interactive game providing instruction in musical notation and in learning an instrument Jun. 15, 2010
7507893 Method for teaching music Mar. 24, 2009
7476154 Cylindrical illumination device and game machine using the same Jan. 13, 2009
7264473 Replaceable faceplates for peripheral devices Sep. 4, 2007
7209730 Telephone adapted for emergency dialing by touch Apr. 24, 2007
7005569 Method for imparting music score reading and keyboard performance skills Feb. 28, 2006
6941125 Telephone adapted for emergency dialing by touch Sep. 6, 2005
6915488 Operation instruction system and computer readable storage medium to be used for the same Jul. 5, 2005
6883985 Printable, reusable key masks Apr. 26, 2005
6850225 Color-coded tactile data-entry devices Feb. 1, 2005
6752631 Teaching apparatus and method of enabling use of keyboard by young children Jun. 22, 2004
6709273 Electronic keyboard instructor Mar. 23, 2004
6705787 Protective keyboard cover Mar. 16, 2004
6669562 Game device Dec. 30, 2003
6644975 Keyboard guide Nov. 11, 2003
6634886 Amusement system having type practice function, typing practice system, and computer readable storage medium Oct. 21, 2003
6579209 Software product for preventing and treating repetitive stress injuries Jun. 17, 2003
6419494 Error feedback system and method for correcting habitual keyboarding errors Jul. 16, 2002
6406300 Board game teaching letter locations on a keyboard Jun. 18, 2002
6287124 Musical performance practicing device and method Sep. 11, 2001
6142910 Method and therapy software system for preventing computer operator injuries Nov. 7, 2000
6059575 Tactile recognition input device and overlay for use with an input device May. 9, 2000
6050825 Opaque, one-size-fits-all computer keyboard cover which covers only the three or four alpha-numeric rows Apr. 18, 2000
6007339 Apparatus and method for inputting mandarin phonetic symbols by using sixteen keys Dec. 28, 1999
5997306 Method for instructing the cognitive relationships between primary and related elements Dec. 7, 1999
5938448 Handy keystroke rotary guide for computer programs Aug. 17, 1999
5902257 Device for the prevention of RSI symptoms May. 11, 1999
5888173 Health saver computer break Mar. 30, 1999
5803744 Computer typing learning device Sep. 8, 1998
5792025 Method and apparatus for reducing repetitive motion injury risk to typist and pointer-device operators Aug. 11, 1998
5718590 Method for keyboard training Feb. 17, 1998
5709550 Keyboard training apparatus Jan. 20, 1998
5700097 Children's computer keyboard Dec. 23, 1997
5544562 Apparatus of a playing practice for electronic musical instrument and control method thereof Aug. 13, 1996
5538431 Typing & mouse manipulation technique and instruction method Jul. 23, 1996
5538431 Typing & mouse manipulation technique and instruction method Jul. 23, 1996
5536170 Interchangeable symbolic language overlay system for push button operated device Jul. 16, 1996
5474484 Doll used to teach children to use the emergency 911 telephone numbers Dec. 12, 1995
5419704 Keyboard Cover May. 30, 1995
5314337 Color-coded data input system method and apparatus May. 24, 1994
5269689 Method for teaching keyboarding Dec. 14, 1993
5254008 Device for teaching music Oct. 19, 1993
5230628 Apparatus for producing operational manual Jul. 27, 1993
5183398 Apparatus and method for interactive instruction of a student Feb. 2, 1993
5105220 Operator introduction screen Apr. 14, 1992
5096317 Computer key cover apparatus Mar. 17, 1992
5011412 Educational keyboard with removable keys Apr. 30, 1991
4902231 Learn to type via mnemonic devices, and methods of constructing and utilizing same Feb. 20, 1990

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