KR870005758U - Learning chair - Google Patents

Learning chair

Info

Publication number
KR870005758U
KR870005758U KR2019850011863U KR850011863U KR870005758U KR 870005758 U KR870005758 U KR 870005758U KR 2019850011863 U KR2019850011863 U KR 2019850011863U KR 850011863 U KR850011863 U KR 850011863U KR 870005758 U KR870005758 U KR 870005758U
Authority
KR
South Korea
Prior art keywords
learning chair
chair
learning
Prior art date
Application number
KR2019850011863U
Other languages
Korean (ko)
Other versions
KR890000045Y1 (en
Inventor
김충경
Original Assignee
동아연필 주식회사
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 동아연필 주식회사 filed Critical 동아연필 주식회사
Priority to KR2019850011863U priority Critical patent/KR890000045Y1/en
Publication of KR870005758U publication Critical patent/KR870005758U/en
Application granted granted Critical
Publication of KR890000045Y1 publication Critical patent/KR890000045Y1/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
    • 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
    • B43L7/00—Straightedges
    • B43L7/005—Straightedges combined with other drawing aids
    • 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
    • B43L7/00—Straightedges
    • B43L7/027—Plural non-adjustable straightedges fixed at right angles
    • B43L7/0275—Triangles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Geometry (AREA)
  • Business, Economics & Management (AREA)
  • Algebra (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Drawing Aids And Blackboards (AREA)
KR2019850011863U 1985-09-14 1985-09-14 Teaching equipment for square KR890000045Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850011863U KR890000045Y1 (en) 1985-09-14 1985-09-14 Teaching equipment for square

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850011863U KR890000045Y1 (en) 1985-09-14 1985-09-14 Teaching equipment for square

Publications (2)

Publication Number Publication Date
KR870005758U true KR870005758U (en) 1987-04-24
KR890000045Y1 KR890000045Y1 (en) 1989-03-02

Family

ID=19245287

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850011863U KR890000045Y1 (en) 1985-09-14 1985-09-14 Teaching equipment for square

Country Status (1)

Country Link
KR (1) KR890000045Y1 (en)

Also Published As

Publication number Publication date
KR890000045Y1 (en) 1989-03-02

Similar Documents

Publication Publication Date Title
DK321887A (en) MEVALONOLACTONANALOGE
DK118986D0 (en) UROSTOMYHOLDER
DK158986D0 (en) INVALIDITY-HEJSEVAERK
BR8600694A (en) ALTERNATOR-COMPRESSOR SET
FI74131B (en) Boiler-varaajayhdistelmä
ATA367885A (en) WHEELCHAIR
KR870005758U (en) Learning chair
ATA33786A (en) SMELL-EXHAUST-LOSING SEAT
KR870009418U (en) desk
KR860010327U (en) Student desk
BR8504735A (en) CHAIR
BR6500720U (en) CHAIR
BR6501365U (en) CHAIR
BR6501473U (en) ARMCHAIR-BED CHAIR
BR6502140U (en) CHAIR
BR6500666U (en) CHAIR
BR6501723U (en) CHAIR
DK264386A (en) BRANDRAER
BR6501768U (en) ARMCHAIR
BR6502022U (en) ARMCHAIR
PT7702U (en) ARMCHAIR
BR6500162U (en) PANTOGRAPHIC CHAIR
IT8541014A0 (en) WHOLE CHINESIANS
KR860012840U (en) Office chair
BR8505307A (en) TEACHING SET

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee