JPS54143341A - Blackboard - Google Patents

Blackboard

Info

Publication number
JPS54143341A
JPS54143341A JP5040178A JP5040178A JPS54143341A JP S54143341 A JPS54143341 A JP S54143341A JP 5040178 A JP5040178 A JP 5040178A JP 5040178 A JP5040178 A JP 5040178A JP S54143341 A JPS54143341 A JP S54143341A
Authority
JP
Japan
Prior art keywords
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
JP5040178A
Other languages
Japanese (ja)
Inventor
Chiaki Kondou
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 JP5040178A priority Critical patent/JPS54143341A/en
Publication of JPS54143341A publication Critical patent/JPS54143341A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP5040178A 1978-04-27 1978-04-27 Blackboard Pending JPS54143341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5040178A JPS54143341A (en) 1978-04-27 1978-04-27 Blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5040178A JPS54143341A (en) 1978-04-27 1978-04-27 Blackboard

Publications (1)

Publication Number Publication Date
JPS54143341A true JPS54143341A (en) 1979-11-08

Family

ID=12857837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5040178A Pending JPS54143341A (en) 1978-04-27 1978-04-27 Blackboard

Country Status (1)

Country Link
JP (1) JPS54143341A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936647A (en) * 1972-08-11 1974-04-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936647A (en) * 1972-08-11 1974-04-05

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