DE172002C - - Google Patents
Info
- Publication number
- DE172002C DE172002C DENDAT172002D DE172002DA DE172002C DE 172002 C DE172002 C DE 172002C DE NDAT172002 D DENDAT172002 D DE NDAT172002D DE 172002D A DE172002D A DE 172002DA DE 172002 C DE172002 C DE 172002C
- Authority
- DE
- Germany
- Prior art keywords
- teaching
- folder
- pockets
- marks
- 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
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 229920002160 Celluloid Polymers 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 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
- G09B17/00—Teaching reading
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Sheet Holders (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
DE172002C true DE172002C (enrdf_load_stackoverflow) |
Family
ID=436927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT172002D Active DE172002C (enrdf_load_stackoverflow) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE172002C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT172002D patent/DE172002C/de active Active
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