KR910005672U - Hair eraser for blackboard - Google Patents

Hair eraser for blackboard

Info

Publication number
KR910005672U
KR910005672U KR2019890013911U KR890013911U KR910005672U KR 910005672 U KR910005672 U KR 910005672U KR 2019890013911 U KR2019890013911 U KR 2019890013911U KR 890013911 U KR890013911 U KR 890013911U KR 910005672 U KR910005672 U KR 910005672U
Authority
KR
South Korea
Prior art keywords
eraser
blackboard
hair
hair eraser
Prior art date
Application number
KR2019890013911U
Other languages
Korean (ko)
Other versions
KR910007436Y1 (en
Inventor
권오범
Original Assignee
권오범
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 권오범 filed Critical 권오범
Priority to KR2019890013911U priority Critical patent/KR910007436Y1/en
Publication of KR910005672U publication Critical patent/KR910005672U/en
Application granted granted Critical
Publication of KR910007436Y1 publication Critical patent/KR910007436Y1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • 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
    • 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
    • B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
KR2019890013911U 1989-09-25 1989-09-25 Chalk eraser KR910007436Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890013911U KR910007436Y1 (en) 1989-09-25 1989-09-25 Chalk eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890013911U KR910007436Y1 (en) 1989-09-25 1989-09-25 Chalk eraser

Publications (2)

Publication Number Publication Date
KR910005672U true KR910005672U (en) 1991-04-22
KR910007436Y1 KR910007436Y1 (en) 1991-09-27

Family

ID=19290246

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890013911U KR910007436Y1 (en) 1989-09-25 1989-09-25 Chalk eraser

Country Status (1)

Country Link
KR (1) KR910007436Y1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108045136A (en) * 2018-01-10 2018-05-18 西安航空学院 A kind of novel blackboard eraser
CN114194723A (en) * 2021-12-25 2022-03-18 陈燕 Teaching aid storage device and method capable of removing chalk dust

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108045136A (en) * 2018-01-10 2018-05-18 西安航空学院 A kind of novel blackboard eraser
CN108045136B (en) * 2018-01-10 2023-09-26 西安航空学院 Novel blackboard eraser
CN114194723A (en) * 2021-12-25 2022-03-18 陈燕 Teaching aid storage device and method capable of removing chalk dust

Also Published As

Publication number Publication date
KR910007436Y1 (en) 1991-09-27

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19960924

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee