JPS595876Y2 - 珠算式暗算練習器 - Google Patents

珠算式暗算練習器

Info

Publication number
JPS595876Y2
JPS595876Y2 JP1980168160U JP16816080U JPS595876Y2 JP S595876 Y2 JPS595876 Y2 JP S595876Y2 JP 1980168160 U JP1980168160 U JP 1980168160U JP 16816080 U JP16816080 U JP 16816080U JP S595876 Y2 JPS595876 Y2 JP S595876Y2
Authority
JP
Japan
Prior art keywords
abacus
mental arithmetic
practice device
mental
horizontal base
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.)
Expired
Application number
JP1980168160U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5790459U (enrdf_load_html_response
Inventor
公顕 中島
Original Assignee
中島 公顯
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 by 中島 公顯 filed Critical 中島 公顯
Priority to JP1980168160U priority Critical patent/JPS595876Y2/ja
Publication of JPS5790459U publication Critical patent/JPS5790459U/ja
Application granted granted Critical
Publication of JPS595876Y2 publication Critical patent/JPS595876Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Electrically Operated Instructional Devices (AREA)
JP1980168160U 1980-11-21 1980-11-21 珠算式暗算練習器 Expired JPS595876Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980168160U JPS595876Y2 (ja) 1980-11-21 1980-11-21 珠算式暗算練習器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980168160U JPS595876Y2 (ja) 1980-11-21 1980-11-21 珠算式暗算練習器

Publications (2)

Publication Number Publication Date
JPS5790459U JPS5790459U (enrdf_load_html_response) 1982-06-03
JPS595876Y2 true JPS595876Y2 (ja) 1984-02-22

Family

ID=29526772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980168160U Expired JPS595876Y2 (ja) 1980-11-21 1980-11-21 珠算式暗算練習器

Country Status (1)

Country Link
JP (1) JPS595876Y2 (enrdf_load_html_response)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4526663Y1 (enrdf_load_html_response) * 1968-07-10 1970-10-16

Also Published As

Publication number Publication date
JPS5790459U (enrdf_load_html_response) 1982-06-03

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