DE287771C - - Google Patents

Info

Publication number
DE287771C
DE287771C DENDAT287771D DE287771DA DE287771C DE 287771 C DE287771 C DE 287771C DE NDAT287771 D DENDAT287771 D DE NDAT287771D DE 287771D A DE287771D A DE 287771DA DE 287771 C DE287771 C DE 287771C
Authority
DE
Germany
Prior art keywords
machine
frame
calculating
parts
russian
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
DENDAT287771D
Other languages
German (de)
English (en)
Publication of DE287771C publication Critical patent/DE287771C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00Teaching not covered by other main groups of this subclass
    • G09B19/02Counting; 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)
  • Drawing Aids And Blackboards (AREA)
DENDAT287771D Active DE287771C (en:Method)

Publications (1)

Publication Number Publication Date
DE287771C true DE287771C (en:Method)

Family

ID=542964

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT287771D Active DE287771C (en:Method)

Country Status (1)

Country Link
DE (1) DE287771C (en:Method)

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