NL3476C - - Google Patents

Info

Publication number
NL3476C
NL3476C NL3476DA NL3476C NL 3476 C NL3476 C NL 3476C NL 3476D A NL3476D A NL 3476DA NL 3476 C NL3476 C NL 3476C
Authority
NL
Netherlands
Application number
Publication of NL3476C publication Critical patent/NL3476C/xx

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)
NL3476D NL3476C (en)

Publications (1)

Publication Number Publication Date
NL3476C true NL3476C (en)

Family

ID=1774124

Family Applications (1)

Application Number Title Priority Date Filing Date
NL3476D NL3476C (en)

Country Status (1)

Country Link
NL (1) NL3476C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235975A (en) * 1963-06-11 1966-02-22 Elliot L Pierson Visual education device for illustrating mathematical concepts
US3758962A (en) * 1971-07-19 1973-09-18 F Bagdasar Arithmetic teaching aid kit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235975A (en) * 1963-06-11 1966-02-22 Elliot L Pierson Visual education device for illustrating mathematical concepts
US3758962A (en) * 1971-07-19 1973-09-18 F Bagdasar Arithmetic teaching aid kit

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