JPS5820394Y2 - 巻取式黒板 - Google Patents

巻取式黒板

Info

Publication number
JPS5820394Y2
JPS5820394Y2 JP1980078214U JP7821480U JPS5820394Y2 JP S5820394 Y2 JPS5820394 Y2 JP S5820394Y2 JP 1980078214 U JP1980078214 U JP 1980078214U JP 7821480 U JP7821480 U JP 7821480U JP S5820394 Y2 JPS5820394 Y2 JP S5820394Y2
Authority
JP
Japan
Prior art keywords
drum
blackboard
support shaft
rotational
sheet
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.)
Expired
Application number
JP1980078214U
Other languages
English (en)
Japanese (ja)
Other versions
JPS571690U (enExample
Inventor
慶治 荒木
Original Assignee
日本プライメタル株式会社
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 日本プライメタル株式会社 filed Critical 日本プライメタル株式会社
Priority to JP1980078214U priority Critical patent/JPS5820394Y2/ja
Publication of JPS571690U publication Critical patent/JPS571690U/ja
Application granted granted Critical
Publication of JPS5820394Y2 publication Critical patent/JPS5820394Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP1980078214U 1980-06-04 1980-06-04 巻取式黒板 Expired JPS5820394Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980078214U JPS5820394Y2 (ja) 1980-06-04 1980-06-04 巻取式黒板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980078214U JPS5820394Y2 (ja) 1980-06-04 1980-06-04 巻取式黒板

Publications (2)

Publication Number Publication Date
JPS571690U JPS571690U (enExample) 1982-01-06
JPS5820394Y2 true JPS5820394Y2 (ja) 1983-04-27

Family

ID=29440749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980078214U Expired JPS5820394Y2 (ja) 1980-06-04 1980-06-04 巻取式黒板

Country Status (1)

Country Link
JP (1) JPS5820394Y2 (enExample)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156337A (ja) * 1974-11-11 1976-05-18 Kanagawa Nabukodoaa Kk Kaitenshikikokuban
JPS5255340U (enExample) * 1975-10-20 1977-04-21
JPS5723371Y2 (enExample) * 1977-09-01 1982-05-21

Also Published As

Publication number Publication date
JPS571690U (enExample) 1982-01-06

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