JPH0416475U - - Google Patents

Info

Publication number
JPH0416475U
JPH0416475U JP5692490U JP5692490U JPH0416475U JP H0416475 U JPH0416475 U JP H0416475U JP 5692490 U JP5692490 U JP 5692490U JP 5692490 U JP5692490 U JP 5692490U JP H0416475 U JPH0416475 U JP H0416475U
Authority
JP
Japan
Prior art keywords
arithmetic
keywords
studying
help
solve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5692490U
Other languages
English (en)
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5692490U priority Critical patent/JPH0416475U/ja
Publication of JPH0416475U publication Critical patent/JPH0416475U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Electrically Operated Instructional Devices (AREA)
JP5692490U 1990-05-30 1990-05-30 Pending JPH0416475U (US08063081-20111122-C00044.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5692490U JPH0416475U (US08063081-20111122-C00044.png) 1990-05-30 1990-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5692490U JPH0416475U (US08063081-20111122-C00044.png) 1990-05-30 1990-05-30

Publications (1)

Publication Number Publication Date
JPH0416475U true JPH0416475U (US08063081-20111122-C00044.png) 1992-02-10

Family

ID=31581181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5692490U Pending JPH0416475U (US08063081-20111122-C00044.png) 1990-05-30 1990-05-30

Country Status (1)

Country Link
JP (1) JPH0416475U (US08063081-20111122-C00044.png)

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