DE297448C - - Google Patents
Info
- Publication number
- DE297448C DE297448C DENDAT297448D DE297448DA DE297448C DE 297448 C DE297448 C DE 297448C DE NDAT297448 D DENDAT297448 D DE NDAT297448D DE 297448D A DE297448D A DE 297448DA DE 297448 C DE297448 C DE 297448C
- Authority
- DE
- Germany
- Prior art keywords
- line
- letter
- magnet
- selenium
- attached
- 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
- BUGBHKTXTAQXES-UHFFFAOYSA-N selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 17
- 229910052711 selenium Inorganic materials 0.000 claims description 17
- 239000011669 selenium Substances 0.000 claims description 17
- 230000000875 corresponding Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 210000004027 cells Anatomy 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000947840 Alteromonadales Species 0.000 description 1
- 230000001154 acute Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000284 resting 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
- G09B21/00—Teaching, or communicating with, the blind, deaf or mute
- G09B21/001—Teaching or communicating with blind persons
- G09B21/006—Teaching or communicating with blind persons using audible presentation of the information
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
DE297448C true DE297448C (US07534539-20090519-C00280.png) |
Family
ID=551743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT297448D Active DE297448C (US07534539-20090519-C00280.png) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE297448C (US07534539-20090519-C00280.png) |
-
0
- DE DENDAT297448D patent/DE297448C/de active Active
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