JPS51139432A - Method of manufacturing blackboard - Google Patents

Method of manufacturing blackboard

Info

Publication number
JPS51139432A
JPS51139432A JP5359276A JP5359276A JPS51139432A JP S51139432 A JPS51139432 A JP S51139432A JP 5359276 A JP5359276 A JP 5359276A JP 5359276 A JP5359276 A JP 5359276A JP S51139432 A JPS51139432 A JP S51139432A
Authority
JP
Japan
Prior art keywords
blackboard
manufacturing
manufacturing blackboard
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.)
Pending
Application number
JP5359276A
Other languages
Japanese (ja)
Inventor
Masahiko Tsuzuki
Nobumasa Arato
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.)
Daido Steel Sheet Corp
Original Assignee
Daido Steel Sheet Corp
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 Daido Steel Sheet Corp filed Critical Daido Steel Sheet Corp
Priority to JP5359276A priority Critical patent/JPS51139432A/en
Publication of JPS51139432A publication Critical patent/JPS51139432A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP5359276A 1976-05-10 1976-05-10 Method of manufacturing blackboard Pending JPS51139432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5359276A JPS51139432A (en) 1976-05-10 1976-05-10 Method of manufacturing blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5359276A JPS51139432A (en) 1976-05-10 1976-05-10 Method of manufacturing blackboard

Publications (1)

Publication Number Publication Date
JPS51139432A true JPS51139432A (en) 1976-12-01

Family

ID=12947133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5359276A Pending JPS51139432A (en) 1976-05-10 1976-05-10 Method of manufacturing blackboard

Country Status (1)

Country Link
JP (1) JPS51139432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932492U (en) * 1982-08-24 1984-02-29 積水化成品工業株式会社 blackboard
JP2003020874A (en) * 2001-07-09 2003-01-24 Nichigaku Kk Board and board configuration method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4023925Y1 (en) * 1964-02-18 1965-08-16
JPS4895467A (en) * 1972-03-24 1973-12-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4023925Y1 (en) * 1964-02-18 1965-08-16
JPS4895467A (en) * 1972-03-24 1973-12-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932492U (en) * 1982-08-24 1984-02-29 積水化成品工業株式会社 blackboard
JP2003020874A (en) * 2001-07-09 2003-01-24 Nichigaku Kk Board and board configuration method

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