JPS5256633A - Group studying system - Google Patents

Group studying system

Info

Publication number
JPS5256633A
JPS5256633A JP13281275A JP13281275A JPS5256633A JP S5256633 A JPS5256633 A JP S5256633A JP 13281275 A JP13281275 A JP 13281275A JP 13281275 A JP13281275 A JP 13281275A JP S5256633 A JPS5256633 A JP S5256633A
Authority
JP
Japan
Prior art keywords
studying system
group studying
group
studying
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.)
Granted
Application number
JP13281275A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5439774B2 (enExample
Inventor
Satoshi Yamauchi
Shigeru Yamazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13281275A priority Critical patent/JPS5256633A/ja
Publication of JPS5256633A publication Critical patent/JPS5256633A/ja
Publication of JPS5439774B2 publication Critical patent/JPS5439774B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrically Operated Instructional Devices (AREA)
JP13281275A 1975-11-05 1975-11-05 Group studying system Granted JPS5256633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13281275A JPS5256633A (en) 1975-11-05 1975-11-05 Group studying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13281275A JPS5256633A (en) 1975-11-05 1975-11-05 Group studying system

Publications (2)

Publication Number Publication Date
JPS5256633A true JPS5256633A (en) 1977-05-10
JPS5439774B2 JPS5439774B2 (enExample) 1979-11-29

Family

ID=15090144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13281275A Granted JPS5256633A (en) 1975-11-05 1975-11-05 Group studying system

Country Status (1)

Country Link
JP (1) JPS5256633A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936308A (ja) * 1983-07-20 1984-02-28 Matsushita Electric Ind Co Ltd ビデオテ−プレコ−ダ切替装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936308A (ja) * 1983-07-20 1984-02-28 Matsushita Electric Ind Co Ltd ビデオテ−プレコ−ダ切替装置

Also Published As

Publication number Publication date
JPS5439774B2 (enExample) 1979-11-29

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