DE100297C - - Google Patents
Info
- Publication number
- DE100297C DE100297C DENDAT100297D DE100297DA DE100297C DE 100297 C DE100297 C DE 100297C DE NDAT100297 D DENDAT100297 D DE NDAT100297D DE 100297D A DE100297D A DE 100297DA DE 100297 C DE100297 C DE 100297C
- Authority
- DE
- Germany
- Prior art keywords
- counting
- bars
- holes
- points
- rods
- 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
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000034 method Methods 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)
- Drawing Aids And Blackboards (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE100297C true DE100297C (cs) |
Family
ID=371129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT100297D Active DE100297C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE100297C (cs) |
-
0
- DE DENDAT100297D patent/DE100297C/de active Active
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