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Class Information
Number: 434/109
Name: Education and demonstration > Business or economics > Record keeping
Description: Subject matter relating to a means for maintaining information about finance or other concerns of a commercial or industrial enterprise, such as records of income or expenses of operation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6585520 |
Method and system for enhancing memorization by using a mnemonic display |
Jul. 1, 2003 |
| 6345821 |
Household chore designation game |
Feb. 12, 2002 |
| 6173153 |
Method and apparatus for taking school attendance |
Jan. 9, 2001 |
| 5429373 |
Play money to be earned and spent by children |
Jul. 4, 1995 |
| 5421729 |
Color-coded catalog and sales method |
Jun. 6, 1995 |
| 5230627 |
Educational checkbook |
Jul. 27, 1993 |
| 5056792 |
Business education model |
Oct. 15, 1991 |
| 4909740 |
G. P. A. challenge game, and methods of constructing and utilizing same |
Mar. 20, 1990 |
| 4773862 |
Method for mapping a joint venture and maps produced thereby |
Sep. 27, 1988 |
| 4689018 |
Method of monitoring credit card charges |
Aug. 25, 1987 |
| 4674192 |
Accounting guide |
Jun. 23, 1987 |
| 4336019 |
Educational accounting game |
Jun. 22, 1982 |
| 4142305 |
Teaching aid for accounting |
Mar. 6, 1979 |
| 4043055 |
Teaching aid for accounting |
Aug. 23, 1977 |
| 4008527 |
Educational accounting device |
Feb. 22, 1977 |
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