KR880008470U - 학습구 - Google Patents

학습구

Info

Publication number
KR880008470U
KR880008470U KR2019860016743U KR860016743U KR880008470U KR 880008470 U KR880008470 U KR 880008470U KR 2019860016743 U KR2019860016743 U KR 2019860016743U KR 860016743 U KR860016743 U KR 860016743U KR 880008470 U KR880008470 U KR 880008470U
Authority
KR
South Korea
Prior art keywords
learning
Prior art date
Application number
KR2019860016743U
Other languages
English (en)
Other versions
KR890003930Y1 (ko
Inventor
지승광
Original Assignee
지승광
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 지승광 filed Critical 지승광
Priority to KR2019860016743U priority Critical patent/KR890003930Y1/ko
Publication of KR880008470U publication Critical patent/KR880008470U/ko
Application granted granted Critical
Publication of KR890003930Y1 publication Critical patent/KR890003930Y1/ko

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
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/0023—Colour matching, recognition, analysis, mixture or the like

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Toys (AREA)
KR2019860016743U 1986-10-31 1986-10-31 학습구 KR890003930Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860016743U KR890003930Y1 (ko) 1986-10-31 1986-10-31 학습구

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860016743U KR890003930Y1 (ko) 1986-10-31 1986-10-31 학습구

Publications (2)

Publication Number Publication Date
KR880008470U true KR880008470U (ko) 1988-06-29
KR890003930Y1 KR890003930Y1 (ko) 1989-06-10

Family

ID=19256668

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860016743U KR890003930Y1 (ko) 1986-10-31 1986-10-31 학습구

Country Status (1)

Country Link
KR (1) KR890003930Y1 (ko)

Also Published As

Publication number Publication date
KR890003930Y1 (ko) 1989-06-10

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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: 19920129

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee