JPS63121595U - - Google Patents

Info

Publication number
JPS63121595U
JPS63121595U JP1463787U JP1463787U JPS63121595U JP S63121595 U JPS63121595 U JP S63121595U JP 1463787 U JP1463787 U JP 1463787U JP 1463787 U JP1463787 U JP 1463787U JP S63121595 U JPS63121595 U JP S63121595U
Authority
JP
Japan
Prior art keywords
dust suction
blackboard eraser
eraser
suction port
device built
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
JP1463787U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP1463787U priority Critical patent/JPS63121595U/ja
Publication of JPS63121595U publication Critical patent/JPS63121595U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP1463787U 1987-02-02 1987-02-02 Pending JPS63121595U (US20030199744A1-20031023-C00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1463787U JPS63121595U (US20030199744A1-20031023-C00003.png) 1987-02-02 1987-02-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1463787U JPS63121595U (US20030199744A1-20031023-C00003.png) 1987-02-02 1987-02-02

Publications (1)

Publication Number Publication Date
JPS63121595U true JPS63121595U (US20030199744A1-20031023-C00003.png) 1988-08-08

Family

ID=30804809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1463787U Pending JPS63121595U (US20030199744A1-20031023-C00003.png) 1987-02-02 1987-02-02

Country Status (1)

Country Link
JP (1) JPS63121595U (US20030199744A1-20031023-C00003.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719096B2 (US20030199744A1-20031023-C00003.png) * 1973-07-14 1982-04-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719096B2 (US20030199744A1-20031023-C00003.png) * 1973-07-14 1982-04-20

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