| Title: | Multipurpose abacus | ||
| Application Number: | 200310110061 | Application Date: | 2003.11.19 |
| Publication Number: | 1619453 | Publication Date: | 2005.05.25 |
| Approval Pub. Date: | Granted Pub. Date: | ||
| International Classifi-cation: | G06C1/00,G06F15/02 | ||
| Applicant(s) Name: | Zhongfei Electronic Co., Ltd., Changchun | Address: | |
| Inventor(s) Name: | |||
| Attorney & Agent: | zhao zheng | ||
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Abstract: |
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| The present invention relates to a multi-purpose abacus. It is formed from abacus, electronic calculator and penholder. Said invention is suitable for accountants and shop assistants. | |||
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| Time: | 12 | ||
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