DE89837C - - Google Patents
Info
- Publication number
- DE89837C DE89837C DENDAT89837D DE89837DA DE89837C DE 89837 C DE89837 C DE 89837C DE NDAT89837 D DENDAT89837 D DE NDAT89837D DE 89837D A DE89837D A DE 89837DA DE 89837 C DE89837 C DE 89837C
- Authority
- DE
- Germany
- Prior art keywords
- axis
- axes
- cubes
- cube
- crank
- 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
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE89837C true DE89837C (cs) |
Family
ID=361618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT89837D Active DE89837C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE89837C (cs) |
-
0
- DE DENDAT89837D patent/DE89837C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69511662T2 (de) | Bausatz mit verbindbaren Elementen zum Lehren mathematischer Grundlagen | |
| DE89837C (cs) | ||
| DE15477C (de) | Rechenmaschine | |
| DE346210C (de) | Rechenvorrichtung fuer Lehrzwecke | |
| DE1797274A1 (de) | Elektro-mechanische geographische oder topographische Karte | |
| DE192651C (cs) | ||
| AT53352B (de) | Rechenlehrmittel. | |
| DE271707C (cs) | ||
| DE298777C (cs) | ||
| DE138668C (cs) | ||
| DE66437C (de) | Rechenlehrmittel | |
| DE230644C (cs) | ||
| DE226164C (cs) | ||
| DE25443C (de) | Rechenapparat für Schulen | |
| DE252608C (cs) | ||
| DE273297C (cs) | ||
| DE2407127A1 (de) | Didaktische vorrichtung | |
| DE388826C (de) | Feststehendes Planetarium | |
| DE39980C (de) | Rechenmaschine für den Unterricht | |
| DE277028C (cs) | ||
| DE340840C (de) | Rechenvorrichtung mit zerlegbaren, durch Nut und Feder zusammengehaltenen Zahleneinheiten | |
| DE567499C (de) | Anzeigetafel oder Kasten | |
| DE139248C (cs) | ||
| AT58955B (de) | Lehrmittel. | |
| DE2711905C2 (de) | Uhrgerat |