KR910005671U - 흑판 지우개 - Google Patents

흑판 지우개

Info

Publication number
KR910005671U
KR910005671U KR2019890013881U KR890013881U KR910005671U KR 910005671 U KR910005671 U KR 910005671U KR 2019890013881 U KR2019890013881 U KR 2019890013881U KR 890013881 U KR890013881 U KR 890013881U KR 910005671 U KR910005671 U KR 910005671U
Authority
KR
South Korea
Prior art keywords
blackboard eraser
eraser
blackboard
Prior art date
Application number
KR2019890013881U
Other languages
English (en)
Other versions
KR910007435Y1 (ko
Inventor
박성덕
Original Assignee
박성덕
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 박성덕 filed Critical 박성덕
Priority to KR2019890013881U priority Critical patent/KR910007435Y1/ko
Publication of KR910005671U publication Critical patent/KR910005671U/ko
Application granted granted Critical
Publication of KR910007435Y1 publication Critical patent/KR910007435Y1/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
    • B43L21/04—Wiper holders
KR2019890013881U 1989-09-21 1989-09-21 흑판 지우개 KR910007435Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890013881U KR910007435Y1 (ko) 1989-09-21 1989-09-21 흑판 지우개

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890013881U KR910007435Y1 (ko) 1989-09-21 1989-09-21 흑판 지우개

Publications (2)

Publication Number Publication Date
KR910005671U true KR910005671U (ko) 1991-04-22
KR910007435Y1 KR910007435Y1 (ko) 1991-09-27

Family

ID=19290229

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890013881U KR910007435Y1 (ko) 1989-09-21 1989-09-21 흑판 지우개

Country Status (1)

Country Link
KR (1) KR910007435Y1 (ko)

Also Published As

Publication number Publication date
KR910007435Y1 (ko) 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: 19940927

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee