DE183369C - - Google Patents

Info

Publication number
DE183369C
DE183369C DENDAT183369D DE183369DA DE183369C DE 183369 C DE183369 C DE 183369C DE NDAT183369 D DENDAT183369 D DE NDAT183369D DE 183369D A DE183369D A DE 183369DA DE 183369 C DE183369 C DE 183369C
Authority
DE
Germany
Prior art keywords
balls
frame
machine
student
slate
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.)
Active
Application number
DENDAT183369D
Other languages
German (de)
English (en)
Publication of DE183369C publication Critical patent/DE183369C/de
Active 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)
  • Toys (AREA)
DENDAT183369D Active DE183369C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE183369C true DE183369C (enrdf_load_stackoverflow)

Family

ID=447376

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT183369D Active DE183369C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE183369C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890273C (de) * 1951-03-14 1953-09-17 Friedrich Schmitt Schreib- und Rechengeraet fuer Kinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890273C (de) * 1951-03-14 1953-09-17 Friedrich Schmitt Schreib- und Rechengeraet fuer Kinder

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