JPS55132297A - Rotary blackboard - Google Patents

Rotary blackboard

Info

Publication number
JPS55132297A
JPS55132297A JP3931979A JP3931979A JPS55132297A JP S55132297 A JPS55132297 A JP S55132297A JP 3931979 A JP3931979 A JP 3931979A JP 3931979 A JP3931979 A JP 3931979A JP S55132297 A JPS55132297 A JP S55132297A
Authority
JP
Japan
Prior art keywords
rotary blackboard
blackboard
rotary
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
JP3931979A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5725399B2 (enExample
Inventor
Kazuharu Kuroki
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP3931979A priority Critical patent/JPS55132297A/ja
Publication of JPS55132297A publication Critical patent/JPS55132297A/ja
Publication of JPS5725399B2 publication Critical patent/JPS5725399B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP3931979A 1979-04-03 1979-04-03 Rotary blackboard Granted JPS55132297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3931979A JPS55132297A (en) 1979-04-03 1979-04-03 Rotary blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3931979A JPS55132297A (en) 1979-04-03 1979-04-03 Rotary blackboard

Publications (2)

Publication Number Publication Date
JPS55132297A true JPS55132297A (en) 1980-10-14
JPS5725399B2 JPS5725399B2 (enExample) 1982-05-29

Family

ID=12549780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3931979A Granted JPS55132297A (en) 1979-04-03 1979-04-03 Rotary blackboard

Country Status (1)

Country Link
JP (1) JPS55132297A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197697A (ja) * 1987-02-12 1988-08-16 富士ゼロックス株式会社 電子黒板の消去装置
CN112248686A (zh) * 2020-10-22 2021-01-22 邱玲玲 一种黑板帘式易擦净黑板

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159597U (ja) * 1982-04-19 1983-10-24 狭山精密工業株式会社 ベルタイマ−に於ける音質向上機構の鳴体

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4314106Y1 (enExample) * 1965-05-07 1968-06-14
JPS5013142U (enExample) * 1973-05-31 1975-02-12
JPS5331540U (enExample) * 1976-08-23 1978-03-18

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4314106Y1 (enExample) * 1965-05-07 1968-06-14
JPS5013142U (enExample) * 1973-05-31 1975-02-12
JPS5331540U (enExample) * 1976-08-23 1978-03-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197697A (ja) * 1987-02-12 1988-08-16 富士ゼロックス株式会社 電子黒板の消去装置
CN112248686A (zh) * 2020-10-22 2021-01-22 邱玲玲 一种黑板帘式易擦净黑板

Also Published As

Publication number Publication date
JPS5725399B2 (enExample) 1982-05-29

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