KR850001476U - 자동지우개를 내설한 칠판 - Google Patents

자동지우개를 내설한 칠판

Info

Publication number
KR850001476U
KR850001476U KR2019830006500U KR830006500U KR850001476U KR 850001476 U KR850001476 U KR 850001476U KR 2019830006500 U KR2019830006500 U KR 2019830006500U KR 830006500 U KR830006500 U KR 830006500U KR 850001476 U KR850001476 U KR 850001476U
Authority
KR
South Korea
Prior art keywords
blackboard
automatic eraser
eraser
automatic
Prior art date
Application number
KR2019830006500U
Other languages
English (en)
Other versions
KR850001580Y1 (ko
Inventor
구이희
Original Assignee
구이희
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 구이희 filed Critical 구이희
Priority to KR2019830006500U priority Critical patent/KR850001580Y1/ko
Publication of KR850001476U publication Critical patent/KR850001476U/ko
Application granted granted Critical
Publication of KR850001580Y1 publication Critical patent/KR850001580Y1/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00—Blackboard or slate cleaning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
KR2019830006500U 1983-07-23 1983-07-23 자동지우개를 내설한 칠판 KR850001580Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019830006500U KR850001580Y1 (ko) 1983-07-23 1983-07-23 자동지우개를 내설한 칠판

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019830006500U KR850001580Y1 (ko) 1983-07-23 1983-07-23 자동지우개를 내설한 칠판

Publications (2)

Publication Number Publication Date
KR850001476U true KR850001476U (ko) 1985-04-10
KR850001580Y1 KR850001580Y1 (ko) 1985-07-31

Family

ID=70158624

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019830006500U KR850001580Y1 (ko) 1983-07-23 1983-07-23 자동지우개를 내설한 칠판

Country Status (1)

Country Link
KR (1) KR850001580Y1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100342701B1 (ko) * 2000-04-20 2002-07-04 박우헌 오토크린 칠판
KR101144224B1 (ko) * 2009-11-06 2012-05-10 한국흑판교재주식회사 물세척 칠판의 물공급장치

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100375174B1 (ko) * 2000-07-24 2003-03-08 주식회사 동양흑판 오토크린 칠판 지움장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100342701B1 (ko) * 2000-04-20 2002-07-04 박우헌 오토크린 칠판
KR101144224B1 (ko) * 2009-11-06 2012-05-10 한국흑판교재주식회사 물세척 칠판의 물공급장치

Also Published As

Publication number Publication date
KR850001580Y1 (ko) 1985-07-31

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Legal Events

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E701 Decision to grant or registration of patent right