Title: Encyclopedical knowledge playing cards
Application Number: 97107155 Application Date: 1997.10.16
Publication Number: 1180877 Publication Date: 1998.05.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09B19/22
Applicant(s) Name: Li Xinxuan Address: 210008
Inventor(s) Name:
Attorney & Agent: shen genshui
Abstract:
     The knowledge-type playing cards for increasing knowledge include 52 cards individed into hearts, spades, diamonds and clubs, each having 13 cards. Each of 52 cards has a knowledge term. The cards in hearts and diamonds are question ones. The cards in spades and clubs are answer ones.
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