KR830002737U - 학습용 타원 콤파스 - Google Patents

학습용 타원 콤파스

Info

Publication number
KR830002737U
KR830002737U KR2019820000200U KR820000200U KR830002737U KR 830002737 U KR830002737 U KR 830002737U KR 2019820000200 U KR2019820000200 U KR 2019820000200U KR 820000200 U KR820000200 U KR 820000200U KR 830002737 U KR830002737 U KR 830002737U
Authority
KR
South Korea
Prior art keywords
learning
elliptical compass
compass
elliptical
learning elliptical
Prior art date
Application number
KR2019820000200U
Other languages
English (en)
Other versions
KR830002895Y1 (ko
Inventor
홍석표
Original Assignee
홍석표
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 홍석표 filed Critical 홍석표
Priority to KR2019820000200U priority Critical patent/KR830002895Y1/ko
Publication of KR830002737U publication Critical patent/KR830002737U/ko
Application granted granted Critical
Publication of KR830002895Y1 publication Critical patent/KR830002895Y1/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
    • B43L11/00—Non-circular-curve-drawing instruments
    • B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
    • B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
KR2019820000200U 1982-01-12 1982-01-12 학습용 타원 콤파스 KR830002895Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019820000200U KR830002895Y1 (ko) 1982-01-12 1982-01-12 학습용 타원 콤파스

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019820000200U KR830002895Y1 (ko) 1982-01-12 1982-01-12 학습용 타원 콤파스

Publications (2)

Publication Number Publication Date
KR830002737U true KR830002737U (ko) 1983-11-23
KR830002895Y1 KR830002895Y1 (ko) 1983-12-13

Family

ID=19223773

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019820000200U KR830002895Y1 (ko) 1982-01-12 1982-01-12 학습용 타원 콤파스

Country Status (1)

Country Link
KR (1) KR830002895Y1 (ko)

Also Published As

Publication number Publication date
KR830002895Y1 (ko) 1983-12-13

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