KR930018648U - Language lessons - Google Patents

Language lessons

Info

Publication number
KR930018648U
KR930018648U KR2019920000073U KR920000073U KR930018648U KR 930018648 U KR930018648 U KR 930018648U KR 2019920000073 U KR2019920000073 U KR 2019920000073U KR 920000073 U KR920000073 U KR 920000073U KR 930018648 U KR930018648 U KR 930018648U
Authority
KR
South Korea
Prior art keywords
language lessons
lessons
language
Prior art date
Application number
KR2019920000073U
Other languages
Korean (ko)
Other versions
KR930008069Y1 (en
Inventor
조형제
Original Assignee
조형제
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 조형제 filed Critical 조형제
Priority to KR9200073U priority Critical patent/KR930008069Y1/en
Publication of KR930018648U publication Critical patent/KR930018648U/en
Application granted granted Critical
Publication of KR930008069Y1 publication Critical patent/KR930008069Y1/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
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/06—Foreign languages
    • G09B19/08—Printed or written appliances, e.g. text books, bilingual letter assemblies, charts
    • 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
    • G09B3/00—Manually or mechanically operated teaching appliances working with questions and answers
    • G09B3/02—Manually or mechanically operated teaching appliances working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student
    • G09B3/04—Manually or mechanically operated teaching appliances working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student of chart form
    • G09B3/045—Manually or mechanically operated teaching appliances working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student of chart form with invisibly printed correct answer; the answer being rendered visible by special optical means, e.g. filters; mirrors

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Electrically Operated Instructional Devices (AREA)
KR9200073U 1992-01-07 1992-01-07 Educational appliance KR930008069Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR9200073U KR930008069Y1 (en) 1992-01-07 1992-01-07 Educational appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR9200073U KR930008069Y1 (en) 1992-01-07 1992-01-07 Educational appliance

Publications (2)

Publication Number Publication Date
KR930018648U true KR930018648U (en) 1993-08-21
KR930008069Y1 KR930008069Y1 (en) 1993-12-08

Family

ID=19327583

Family Applications (1)

Application Number Title Priority Date Filing Date
KR9200073U KR930008069Y1 (en) 1992-01-07 1992-01-07 Educational appliance

Country Status (1)

Country Link
KR (1) KR930008069Y1 (en)

Also Published As

Publication number Publication date
KR930008069Y1 (en) 1993-12-08

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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