JPS57130364U - - Google Patents

Info

Publication number
JPS57130364U
JPS57130364U JP1981018128U JP1812881U JPS57130364U JP S57130364 U JPS57130364 U JP S57130364U JP 1981018128 U JP1981018128 U JP 1981018128U JP 1812881 U JP1812881 U JP 1812881U JP S57130364 U JPS57130364 U JP S57130364U
Authority
JP
Japan
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.)
Pending
Application number
JP1981018128U
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 JP1981018128U priority Critical patent/JPS57130364U/ja
Publication of JPS57130364U publication Critical patent/JPS57130364U/ja
Priority to US06/440,300 priority patent/US4472892A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09D—RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS
    • G09D3/00—Perpetual calendars
    • G09D3/02—Perpetual calendars with interchangeable members bearing the indicia
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Toys (AREA)
JP1981018128U 1981-02-10 1981-02-10 Pending JPS57130364U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1981018128U JPS57130364U (ja) 1981-02-10 1981-02-10
US06/440,300 US4472892A (en) 1981-02-10 1982-11-09 Perpetual cubic calendar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981018128U JPS57130364U (ja) 1981-02-10 1981-02-10

Publications (1)

Publication Number Publication Date
JPS57130364U true JPS57130364U (ja) 1982-08-13

Family

ID=11962962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981018128U Pending JPS57130364U (ja) 1981-02-10 1981-02-10

Country Status (2)

Country Link
US (1) US4472892A (ja)
JP (1) JPS57130364U (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934076A (en) * 1989-03-31 1990-06-19 Fowler Eugene C Perpetual calendar
US5295319A (en) * 1992-07-09 1994-03-22 Unlimited International Education, Inc. Educational calendar unit
US6381885B1 (en) * 1997-09-29 2002-05-07 H. Richard Ficco, Jr. Golf ball calendar
US5967787A (en) * 1998-01-14 1999-10-19 Tsao; Chin-Chen Educational display with a clock and with numeral and date blocks accompanied by a base 10 mathematical apparatus
US6550165B2 (en) * 2001-09-14 2003-04-22 Charles Chirafesi, Jr. Perpetual calendar wall display device having rotatable calendar days
USD736852S1 (en) * 2013-06-10 2015-08-18 Target Brands, Inc. Perpetual calendar

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315077A (en) * 1919-09-02 barclay
US166796A (en) * 1875-08-17 Improvement in calendars
US1635927A (en) * 1925-01-16 1927-07-12 Arthur L Curtis Perpetual calendar
US2386114A (en) * 1944-04-14 1945-10-02 Louise A Hayes Toy blocks and container
US2444768A (en) * 1945-08-13 1948-07-06 Herbert O Eby Educational game device
FR1098735A (fr) * 1954-01-28 1955-08-18 Perfectionnements apportés aux articles du genre des agendas
US3670436A (en) * 1970-04-17 1972-06-20 Ketcham & Mcdougall Cube calendar
US3864859A (en) * 1973-08-06 1975-02-11 Len Kaufman Perpetual calendar
US4194196A (en) * 1977-10-25 1980-03-18 Mohiuddin Mohammed S Illuminated master calendar and message recording system
US4275516A (en) * 1978-12-04 1981-06-30 Lane Ronald S Permanent calendar construction
FR2419553A1 (fr) * 1978-03-06 1979-10-05 Grinberg Edward Calendrier
US4188734A (en) * 1978-04-26 1980-02-19 Rich Co Educational toy
US4358906A (en) * 1980-04-09 1982-11-16 Reininga Gary W Calendar

Also Published As

Publication number Publication date
US4472892A (en) 1984-09-25

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