JPS63283999A - 黒板消し装置 - Google Patents

黒板消し装置

Info

Publication number
JPS63283999A
JPS63283999A JP11955787A JP11955787A JPS63283999A JP S63283999 A JPS63283999 A JP S63283999A JP 11955787 A JP11955787 A JP 11955787A JP 11955787 A JP11955787 A JP 11955787A JP S63283999 A JPS63283999 A JP S63283999A
Authority
JP
Japan
Prior art keywords
blackboard
rotating
mat
motor
frame
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
JP11955787A
Other languages
English (en)
Japanese (ja)
Other versions
JPH045560B2 (enrdf_load_stackoverflow
Inventor
博 山下
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 JP11955787A priority Critical patent/JPS63283999A/ja
Publication of JPS63283999A publication Critical patent/JPS63283999A/ja
Publication of JPH045560B2 publication Critical patent/JPH045560B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Filters For Electric Vacuum Cleaners (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Drawing Aids And Blackboards (AREA)
JP11955787A 1987-05-15 1987-05-15 黒板消し装置 Granted JPS63283999A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11955787A JPS63283999A (ja) 1987-05-15 1987-05-15 黒板消し装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11955787A JPS63283999A (ja) 1987-05-15 1987-05-15 黒板消し装置

Publications (2)

Publication Number Publication Date
JPS63283999A true JPS63283999A (ja) 1988-11-21
JPH045560B2 JPH045560B2 (enrdf_load_stackoverflow) 1992-01-31

Family

ID=14764266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11955787A Granted JPS63283999A (ja) 1987-05-15 1987-05-15 黒板消し装置

Country Status (1)

Country Link
JP (1) JPS63283999A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0664389A (ja) * 1992-08-13 1994-03-08 Nec Corp 電子黒板
WO2000068025A1 (en) * 1999-05-07 2000-11-16 Jang Chang Ho An apparatus and a method for automatically erasing a blackboard

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109998U (ja) * 1983-12-27 1985-07-25 株式会社　アイム 黒板払拭装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109998U (ja) * 1983-12-27 1985-07-25 株式会社　アイム 黒板払拭装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0664389A (ja) * 1992-08-13 1994-03-08 Nec Corp 電子黒板
WO2000068025A1 (en) * 1999-05-07 2000-11-16 Jang Chang Ho An apparatus and a method for automatically erasing a blackboard

Also Published As

Publication number Publication date
JPH045560B2 (enrdf_load_stackoverflow) 1992-01-31

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