KR920004223U - Multipurpose blackboard - Google Patents

Multipurpose blackboard

Info

Publication number
KR920004223U
KR920004223U KR2019900012750U KR900012750U KR920004223U KR 920004223 U KR920004223 U KR 920004223U KR 2019900012750 U KR2019900012750 U KR 2019900012750U KR 900012750 U KR900012750 U KR 900012750U KR 920004223 U KR920004223 U KR 920004223U
Authority
KR
South Korea
Prior art keywords
multipurpose blackboard
blackboard
multipurpose
Prior art date
Application number
KR2019900012750U
Other languages
Korean (ko)
Other versions
KR920004693Y1 (en
Inventor
김영무
Original Assignee
김영무
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 김영무 filed Critical 김영무
Priority to KR2019900012750U priority Critical patent/KR920004693Y1/en
Publication of KR920004223U publication Critical patent/KR920004223U/en
Application granted granted Critical
Publication of KR920004693Y1 publication Critical patent/KR920004693Y1/en

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
    • B43L1/045—Blackboards with magnetic action
    • 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
    • B43L1/008—Repeatedly-usable boards or tablets for writing or drawing with magnetic action
    • 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
    • B43L1/06—Blackboards rigid
KR2019900012750U 1990-08-23 1990-08-23 Blackboard KR920004693Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900012750U KR920004693Y1 (en) 1990-08-23 1990-08-23 Blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900012750U KR920004693Y1 (en) 1990-08-23 1990-08-23 Blackboard

Publications (2)

Publication Number Publication Date
KR920004223U true KR920004223U (en) 1992-03-25
KR920004693Y1 KR920004693Y1 (en) 1992-07-13

Family

ID=19302479

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900012750U KR920004693Y1 (en) 1990-08-23 1990-08-23 Blackboard

Country Status (1)

Country Link
KR (1) KR920004693Y1 (en)

Also Published As

Publication number Publication date
KR920004693Y1 (en) 1992-07-13

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Legal Events

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E701 Decision to grant or registration of patent right
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Payment date: 19970523

Year of fee payment: 6

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