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
Abstract:
     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.
Time: 12
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