GB2057742B - Educational device - Google Patents

Educational device

Info

Publication number
GB2057742B
GB2057742B GB8020516A GB8020516A GB2057742B GB 2057742 B GB2057742 B GB 2057742B GB 8020516 A GB8020516 A GB 8020516A GB 8020516 A GB8020516 A GB 8020516A GB 2057742 B GB2057742 B GB 2057742B
Authority
GB
United Kingdom
Prior art keywords
educational device
educational
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
GB8020516A
Other versions
GB2057742A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8020516A priority Critical patent/GB2057742B/en
Publication of GB2057742A publication Critical patent/GB2057742A/en
Application granted granted Critical
Publication of GB2057742B publication Critical patent/GB2057742B/en
Expired 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
GB8020516A 1979-09-10 1980-06-23 Educational device Expired GB2057742B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8020516A GB2057742B (en) 1979-09-10 1980-06-23 Educational device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7931315 1979-09-10
GB8020516A GB2057742B (en) 1979-09-10 1980-06-23 Educational device

Publications (2)

Publication Number Publication Date
GB2057742A GB2057742A (en) 1981-04-01
GB2057742B true GB2057742B (en) 1983-05-18

Family

ID=26272829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8020516A Expired GB2057742B (en) 1979-09-10 1980-06-23 Educational device

Country Status (1)

Country Link
GB (1) GB2057742B (en)

Also Published As

Publication number Publication date
GB2057742A (en) 1981-04-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee