KR860005170U - Synthetic resin prism for teaching materials - Google Patents

Synthetic resin prism for teaching materials

Info

Publication number
KR860005170U
KR860005170U KR2019840009789U KR840009789U KR860005170U KR 860005170 U KR860005170 U KR 860005170U KR 2019840009789 U KR2019840009789 U KR 2019840009789U KR 840009789 U KR840009789 U KR 840009789U KR 860005170 U KR860005170 U KR 860005170U
Authority
KR
South Korea
Prior art keywords
synthetic resin
teaching materials
resin prism
prism
teaching
Prior art date
Application number
KR2019840009789U
Other languages
Korean (ko)
Other versions
KR870000505Y1 (en
Inventor
진명선
Original Assignee
진명선
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 진명선 filed Critical 진명선
Priority to KR2019840009789U priority Critical patent/KR870000505Y1/en
Publication of KR860005170U publication Critical patent/KR860005170U/en
Application granted granted Critical
Publication of KR870000505Y1 publication Critical patent/KR870000505Y1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/06—Fluid-filled or evacuated prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Toys (AREA)
KR2019840009789U 1984-10-06 1984-10-06 The plastic prism for learning KR870000505Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019840009789U KR870000505Y1 (en) 1984-10-06 1984-10-06 The plastic prism for learning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019840009789U KR870000505Y1 (en) 1984-10-06 1984-10-06 The plastic prism for learning

Publications (2)

Publication Number Publication Date
KR860005170U true KR860005170U (en) 1986-05-10
KR870000505Y1 KR870000505Y1 (en) 1987-02-16

Family

ID=70158114

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019840009789U KR870000505Y1 (en) 1984-10-06 1984-10-06 The plastic prism for learning

Country Status (1)

Country Link
KR (1) KR870000505Y1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101026137B1 (en) * 2009-01-20 2011-04-05 김종길 Educational tool for observing cross section of solid figure

Also Published As

Publication number Publication date
KR870000505Y1 (en) 1987-02-16

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19900205

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee