DE277028C - - Google Patents
Info
- Publication number
- DE277028C DE277028C DENDAT277028D DE277028DA DE277028C DE 277028 C DE277028 C DE 277028C DE NDAT277028 D DENDAT277028 D DE NDAT277028D DE 277028D A DE277028D A DE 277028DA DE 277028 C DE277028 C DE 277028C
- Authority
- DE
- Germany
- Prior art keywords
- arithmetic
- slide
- cutout
- units
- shows
- 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
Links
- 230000001174 ascending effect Effects 0.000 description 1
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)
- Image Processing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE277028C true DE277028C (cs) |
Family
ID=533169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT277028D Active DE277028C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE277028C (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2599167A1 (fr) * | 1986-05-23 | 1987-11-27 | Brissiaud Remi | Dispositif pour enseigner les concepts arithmetiques |
-
0
- DE DENDAT277028D patent/DE277028C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2599167A1 (fr) * | 1986-05-23 | 1987-11-27 | Brissiaud Remi | Dispositif pour enseigner les concepts arithmetiques |
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