JPS5932492U - 黒板 - Google Patents

黒板

Info

Publication number
JPS5932492U
JPS5932492U JP12839482U JP12839482U JPS5932492U JP S5932492 U JPS5932492 U JP S5932492U JP 12839482 U JP12839482 U JP 12839482U JP 12839482 U JP12839482 U JP 12839482U JP S5932492 U JPS5932492 U JP S5932492U
Authority
JP
Japan
Prior art keywords
maleic anhydride
styrene
blackboard
weight
anhydride copolymer
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
JP12839482U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6347515Y2 (enrdf_load_stackoverflow
Inventor
柴田　政忠
武山　照夫
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.)
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Kasei 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 Sekisui Kasei Co Ltd filed Critical Sekisui Kasei Co Ltd
Priority to JP12839482U priority Critical patent/JPS5932492U/ja
Publication of JPS5932492U publication Critical patent/JPS5932492U/ja
Application granted granted Critical
Publication of JPS6347515Y2 publication Critical patent/JPS6347515Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP12839482U 1982-08-24 1982-08-24 黒板 Granted JPS5932492U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12839482U JPS5932492U (ja) 1982-08-24 1982-08-24 黒板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12839482U JPS5932492U (ja) 1982-08-24 1982-08-24 黒板

Publications (2)

Publication Number Publication Date
JPS5932492U true JPS5932492U (ja) 1984-02-29
JPS6347515Y2 JPS6347515Y2 (enrdf_load_stackoverflow) 1988-12-07

Family

ID=30291282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12839482U Granted JPS5932492U (ja) 1982-08-24 1982-08-24 黒板

Country Status (1)

Country Link
JP (1) JPS5932492U (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51139432A (en) * 1976-05-10 1976-12-01 Daido Steel Sheet Corp Method of manufacturing blackboard

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51139432A (en) * 1976-05-10 1976-12-01 Daido Steel Sheet Corp Method of manufacturing blackboard

Also Published As

Publication number Publication date
JPS6347515Y2 (enrdf_load_stackoverflow) 1988-12-07

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