GB1302557A - - Google Patents

Info

Publication number
GB1302557A
GB1302557A GB1302557DA GB1302557A GB 1302557 A GB1302557 A GB 1302557A GB 1302557D A GB1302557D A GB 1302557DA GB 1302557 A GB1302557 A GB 1302557A
Authority
GB
United Kingdom
Prior art keywords
post
christy
dec
rings
educational device
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
Other languages
English (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
Publication of GB1302557A publication Critical patent/GB1302557A/en
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

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Cartons (AREA)
  • Packages (AREA)
GB1302557D 1969-12-06 1969-12-06 Expired GB1302557A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5968569 1969-12-06

Publications (1)

Publication Number Publication Date
GB1302557A true GB1302557A (enrdf_load_stackoverflow) 1973-01-10

Family

ID=10484223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1302557D Expired GB1302557A (enrdf_load_stackoverflow) 1969-12-06 1969-12-06

Country Status (1)

Country Link
GB (1) GB1302557A (enrdf_load_stackoverflow)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years