JPH0173870U - - Google Patents

Info

Publication number
JPH0173870U
JPH0173870U JP1987168944U JP16894487U JPH0173870U JP H0173870 U JPH0173870 U JP H0173870U JP 1987168944 U JP1987168944 U JP 1987168944U JP 16894487 U JP16894487 U JP 16894487U JP H0173870 U JPH0173870 U JP H0173870U
Authority
JP
Japan
Prior art keywords
abacus
computer
practice device
arithmetic
bead
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
JP1987168944U
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 JP1987168944U priority Critical patent/JPH0173870U/ja
Publication of JPH0173870U publication Critical patent/JPH0173870U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Electrically Operated Instructional Devices (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Input From Keyboards Or The Like (AREA)
JP1987168944U 1987-11-06 1987-11-06 Pending JPH0173870U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987168944U JPH0173870U (enrdf_load_stackoverflow) 1987-11-06 1987-11-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987168944U JPH0173870U (enrdf_load_stackoverflow) 1987-11-06 1987-11-06

Publications (1)

Publication Number Publication Date
JPH0173870U true JPH0173870U (enrdf_load_stackoverflow) 1989-05-18

Family

ID=31458568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987168944U Pending JPH0173870U (enrdf_load_stackoverflow) 1987-11-06 1987-11-06

Country Status (1)

Country Link
JP (1) JPH0173870U (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5521349A (en) * 1978-07-31 1980-02-15 Hitachi Metals Ltd Granular material loading method
JPS5850466B2 (ja) * 1972-12-04 1983-11-10 シ−メンス アクチエンゲゼルシヤフト インサツデンシンソウ ジユシンキノドウキドウサホウホウ
JPS5926417U (ja) * 1982-08-06 1984-02-18 株式会社クボタ 焼却炉のコンベヤ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850466B2 (ja) * 1972-12-04 1983-11-10 シ−メンス アクチエンゲゼルシヤフト インサツデンシンソウ ジユシンキノドウキドウサホウホウ
JPS5521349A (en) * 1978-07-31 1980-02-15 Hitachi Metals Ltd Granular material loading method
JPS5926417U (ja) * 1982-08-06 1984-02-18 株式会社クボタ 焼却炉のコンベヤ

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