KR890014328U - Math figure teaching aid - Google Patents

Math figure teaching aid

Info

Publication number
KR890014328U
KR890014328U KR2019870023463U KR870023463U KR890014328U KR 890014328 U KR890014328 U KR 890014328U KR 2019870023463 U KR2019870023463 U KR 2019870023463U KR 870023463 U KR870023463 U KR 870023463U KR 890014328 U KR890014328 U KR 890014328U
Authority
KR
South Korea
Prior art keywords
math
teaching aid
teaching
aid
Prior art date
Application number
KR2019870023463U
Other languages
Korean (ko)
Other versions
KR900010819Y1 (en
Inventor
이영미
Original Assignee
이영미
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 이영미 filed Critical 이영미
Priority to KR2019870023463U priority Critical patent/KR900010819Y1/en
Publication of KR890014328U publication Critical patent/KR890014328U/en
Application granted granted Critical
Publication of KR900010819Y1 publication Critical patent/KR900010819Y1/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
    • G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
KR2019870023463U 1987-12-29 1987-12-29 Teaching equipment of mathematics KR900010819Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870023463U KR900010819Y1 (en) 1987-12-29 1987-12-29 Teaching equipment of mathematics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870023463U KR900010819Y1 (en) 1987-12-29 1987-12-29 Teaching equipment of mathematics

Publications (2)

Publication Number Publication Date
KR890014328U true KR890014328U (en) 1989-08-10
KR900010819Y1 KR900010819Y1 (en) 1990-11-30

Family

ID=19270902

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870023463U KR900010819Y1 (en) 1987-12-29 1987-12-29 Teaching equipment of mathematics

Country Status (1)

Country Link
KR (1) KR900010819Y1 (en)

Also Published As

Publication number Publication date
KR900010819Y1 (en) 1990-11-30

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee