JPH0228538Y2 - - Google Patents

Info

Publication number
JPH0228538Y2
JPH0228538Y2 JP1985020019U JP2001985U JPH0228538Y2 JP H0228538 Y2 JPH0228538 Y2 JP H0228538Y2 JP 1985020019 U JP1985020019 U JP 1985020019U JP 2001985 U JP2001985 U JP 2001985U JP H0228538 Y2 JPH0228538 Y2 JP H0228538Y2
Authority
JP
Japan
Prior art keywords
correct answer
answer
plate
displayed
numbers
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
JP1985020019U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61137975U (en]
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 filed Critical
Priority to JP1985020019U priority Critical patent/JPH0228538Y2/ja
Priority to US06/781,479 priority patent/US4674433A/en
Priority to GB8524305A priority patent/GB2171237B/en
Publication of JPS61137975U publication Critical patent/JPS61137975U/ja
Application granted granted Critical
Publication of JPH0228538Y2 publication Critical patent/JPH0228538Y2/ja
Expired legal-status Critical Current

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
    • G09B19/02—Counting; Calculating
    • 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

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)
  • Entrepreneurship & Innovation (AREA)
  • Electrically Operated Instructional Devices (AREA)
JP1985020019U 1985-02-16 1985-02-16 Expired JPH0228538Y2 (en])

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1985020019U JPH0228538Y2 (en]) 1985-02-16 1985-02-16
US06/781,479 US4674433A (en) 1985-02-16 1985-09-30 Correct answer displaying device for arithmetic practicing unit
GB8524305A GB2171237B (en) 1985-02-16 1985-10-02 Correct answer displaying device for arithmetic calculations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985020019U JPH0228538Y2 (en]) 1985-02-16 1985-02-16

Publications (2)

Publication Number Publication Date
JPS61137975U JPS61137975U (en]) 1986-08-27
JPH0228538Y2 true JPH0228538Y2 (en]) 1990-07-31

Family

ID=12015383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985020019U Expired JPH0228538Y2 (en]) 1985-02-16 1985-02-16

Country Status (3)

Country Link
US (1) US4674433A (en])
JP (1) JPH0228538Y2 (en])
GB (1) GB2171237B (en])

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752058A (en) * 1986-12-04 1988-06-21 Weber Milton N Shock-absorbing support rail
US5277587A (en) * 1992-09-15 1994-01-11 Dart Industries Inc. Learning toy
US6092294A (en) * 1998-07-14 2000-07-25 Hop Lee Cheong Industrial Company Limited Drawing board
US7413440B1 (en) * 2005-07-09 2008-08-19 Kennon Carol M Hundreds board device and method
US20110189644A1 (en) * 2010-01-30 2011-08-04 Duncan Milne Self-Correcting Learning Tray With Inserted Cards
USD648392S1 (en) * 2011-04-13 2011-11-08 Martha Thorpe Multiplication teaching aid set
USD864304S1 (en) * 2016-08-08 2019-10-22 Winning Moves Uk Limited Game playing apparatus
GB201814072D0 (en) * 2018-08-29 2018-10-10 Mair Gavin An education tool
USD998055S1 (en) * 2018-10-30 2023-09-05 Smart N.V. Train game set
USD946659S1 (en) * 2018-11-30 2022-03-22 Larry McCarthy Square control board game
USD946086S1 (en) * 2018-12-28 2022-03-15 John A. Rice Game board
USD1069914S1 (en) * 2020-08-05 2025-04-08 5Head Chess Limited Configurable chess board
USD992646S1 (en) * 2020-09-25 2023-07-18 Hongkong Eiwo Co., Limited Connection game
USD1006883S1 (en) * 2022-11-04 2023-12-05 Smart, Naamloze Vennootschap Game board with set of game pieces

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614162A (en) * 1951-02-07 1952-10-14 Edgar G Smith Currency denomination indicator
DE196601C (en]) * 1963-03-01
GB1048795A (en) * 1965-06-18 1966-11-23 Standard Telephones Cables Ltd Improvements in or relating to push button equipment
GB1278075A (en) * 1969-08-20 1972-06-14 Tsuneji Kojima Memory exercising device
US3855959A (en) * 1972-08-02 1974-12-24 Schadow R Kg Fa Indicating push button for push button switches
US4258477A (en) * 1978-12-14 1981-03-31 Gakken Co., Ltd. Multiplication study device
JPS5734520Y2 (en]) * 1979-01-25 1982-07-30

Also Published As

Publication number Publication date
GB8524305D0 (en) 1985-11-06
US4674433A (en) 1987-06-23
GB2171237B (en) 1989-06-14
JPS61137975U (en]) 1986-08-27
GB2171237A (en) 1986-08-20

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