JPH061440Y2 - 磁気黒板 - Google Patents

磁気黒板

Info

Publication number
JPH061440Y2
JPH061440Y2 JP12757587U JP12757587U JPH061440Y2 JP H061440 Y2 JPH061440 Y2 JP H061440Y2 JP 12757587 U JP12757587 U JP 12757587U JP 12757587 U JP12757587 U JP 12757587U JP H061440 Y2 JPH061440 Y2 JP H061440Y2
Authority
JP
Japan
Prior art keywords
magnetic
blackboard
magnet
particles
pen
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 - Lifetime
Application number
JP12757587U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6432180U (enrdf_load_stackoverflow
Inventor
伊久衛 川島
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 JP12757587U priority Critical patent/JPH061440Y2/ja
Publication of JPS6432180U publication Critical patent/JPS6432180U/ja
Application granted granted Critical
Publication of JPH061440Y2 publication Critical patent/JPH061440Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
JP12757587U 1987-08-21 1987-08-21 磁気黒板 Expired - Lifetime JPH061440Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12757587U JPH061440Y2 (ja) 1987-08-21 1987-08-21 磁気黒板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12757587U JPH061440Y2 (ja) 1987-08-21 1987-08-21 磁気黒板

Publications (2)

Publication Number Publication Date
JPS6432180U JPS6432180U (enrdf_load_stackoverflow) 1989-02-28
JPH061440Y2 true JPH061440Y2 (ja) 1994-01-12

Family

ID=31380128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12757587U Expired - Lifetime JPH061440Y2 (ja) 1987-08-21 1987-08-21 磁気黒板

Country Status (1)

Country Link
JP (1) JPH061440Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6432180U (enrdf_load_stackoverflow) 1989-02-28

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