JPS5864499U - チヨ−ク紛飛散防止板付黒板拭き - Google Patents

チヨ−ク紛飛散防止板付黒板拭き

Info

Publication number
JPS5864499U
JPS5864499U JP15909581U JP15909581U JPS5864499U JP S5864499 U JPS5864499 U JP S5864499U JP 15909581 U JP15909581 U JP 15909581U JP 15909581 U JP15909581 U JP 15909581U JP S5864499 U JPS5864499 U JP S5864499U
Authority
JP
Japan
Prior art keywords
wiper
chalkboard
dust prevention
prevention board
chalk powder
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
JP15909581U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6345352Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
中沢　俊一
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 JP15909581U priority Critical patent/JPS5864499U/ja
Publication of JPS5864499U publication Critical patent/JPS5864499U/ja
Application granted granted Critical
Publication of JPS6345352Y2 publication Critical patent/JPS6345352Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP15909581U 1981-10-27 1981-10-27 チヨ−ク紛飛散防止板付黒板拭き Granted JPS5864499U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15909581U JPS5864499U (ja) 1981-10-27 1981-10-27 チヨ−ク紛飛散防止板付黒板拭き

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15909581U JPS5864499U (ja) 1981-10-27 1981-10-27 チヨ−ク紛飛散防止板付黒板拭き

Publications (2)

Publication Number Publication Date
JPS5864499U true JPS5864499U (ja) 1983-04-30
JPS6345352Y2 JPS6345352Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-11-24

Family

ID=29951569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15909581U Granted JPS5864499U (ja) 1981-10-27 1981-10-27 チヨ−ク紛飛散防止板付黒板拭き

Country Status (1)

Country Link
JP (1) JPS5864499U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS483344U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-05-21 1973-01-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS483344U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-05-21 1973-01-16

Also Published As

Publication number Publication date
JPS6345352Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-11-24

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