G09B 1/28

Technology

Patent/Pub #	Title	Filing Date	Issue/Publication Date	Patent Owner
6551110	Visual educational device for teaching literacy	Dec 19, 01	Apr 22, 03	Not available
6171110	Teaching aid for developing a child's intelligence	Dec 08, 99	Jan 09, 01	LI-HSIANG LU, MU, HSUEH-CHIH,
5149097	Crossword puzzle aid	May 01, 91	Sep 22, 92	Not available
4641282	Memory system	May 24, 83	Feb 03, 87	Tokyo Shibaura Denki Kabushiki Kaisha
4311465	Language translator	Mar 06, 80	Jan 19, 82	Not available
4241522	Teaching aid	Apr 06, 79	Dec 30, 80	Not available

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Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Watches in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
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Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Follows in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
Maximum number of comparisons	1 (maximum)	5 (maximum)	20 (maximum)	Unlimited