KR840000771U - 학습용 칠판 - Google Patents

학습용 칠판

Info

Publication number
KR840000771U
KR840000771U KR2019820005315U KR820005315U KR840000771U KR 840000771 U KR840000771 U KR 840000771U KR 2019820005315 U KR2019820005315 U KR 2019820005315U KR 820005315 U KR820005315 U KR 820005315U KR 840000771 U KR840000771 U KR 840000771U
Authority
KR
South Korea
Prior art keywords
learning blackboard
blackboard
learning
Prior art date
Application number
KR2019820005315U
Other languages
English (en)
Other versions
KR840001089Y1 (ko
Inventor
이안섭
Original Assignee
이안섭
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 이안섭 filed Critical 이안섭
Priority to KR2019820005315U priority Critical patent/KR840001089Y1/ko
Priority to JP1983093429U priority patent/JPS5917971U/ja
Publication of KR840000771U publication Critical patent/KR840000771U/ko
Application granted granted Critical
Publication of KR840001089Y1 publication Critical patent/KR840001089Y1/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
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/10—Writing surfaces thereof
KR2019820005315U 1982-07-07 1982-07-07 학습용 칠판 KR840001089Y1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR2019820005315U KR840001089Y1 (ko) 1982-07-07 1982-07-07 학습용 칠판
JP1983093429U JPS5917971U (ja) 1982-07-07 1983-06-20 学習具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019820005315U KR840001089Y1 (ko) 1982-07-07 1982-07-07 학습용 칠판

Publications (2)

Publication Number Publication Date
KR840000771U true KR840000771U (ko) 1984-02-29
KR840001089Y1 KR840001089Y1 (ko) 1984-06-23

Family

ID=30439225

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019820005315U KR840001089Y1 (ko) 1982-07-07 1982-07-07 학습용 칠판

Country Status (2)

Country Link
JP (1) JPS5917971U (ko)
KR (1) KR840001089Y1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020027739A (ko) * 2000-10-04 2002-04-15 서영래 휴대용 아이스 백

Also Published As

Publication number Publication date
JPS5917971U (ja) 1984-02-03
KR840001089Y1 (ko) 1984-06-23
JPS6210152Y2 (ko) 1987-03-09

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Legal Events

Date Code Title Description
E902 Notification of reason for refusal
O032 Opposition [utility model]: request for opposition
E701 Decision to grant or registration of patent right
O071 Decision to grant registration after opposition [utility model]: decision to grant registration
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19900110

Year of fee payment: 10

EXPY Expiration of term