DE228700C - - Google Patents
Info
- Publication number
- DE228700C DE228700C DENDAT228700D DE228700DA DE228700C DE 228700 C DE228700 C DE 228700C DE NDAT228700 D DENDAT228700 D DE NDAT228700D DE 228700D A DE228700D A DE 228700DA DE 228700 C DE228700 C DE 228700C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- collapsed
- card
- alternately
- same
- 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
- 239000002184 metal Substances 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
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/10—Map spot or coordinate position indicators; Map reading aids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Road Signs Or Road Markings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE228700C true DE228700C (https=) |
Family
ID=489073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT228700D Active DE228700C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE228700C (https=) |
-
0
- DE DENDAT228700D patent/DE228700C/de active Active
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