DE238780C - - Google Patents
Info
- Publication number
- DE238780C DE238780C DENDAT238780D DE238780DA DE238780C DE 238780 C DE238780 C DE 238780C DE NDAT238780 D DENDAT238780 D DE NDAT238780D DE 238780D A DE238780D A DE 238780DA DE 238780 C DE238780 C DE 238780C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- wire
- arithmetic
- tens
- ones
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel 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
- 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)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE238780C true DE238780C (cs) |
Family
ID=498271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT238780D Active DE238780C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE238780C (cs) |
-
0
- DE DENDAT238780D patent/DE238780C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1983001183A1 (en) | Height adjustable table for working posts with cathodic screen | |
| DE238780C (cs) | ||
| DE709118C (de) | Vorrichtung zum Veraendern der Spannung der Typenhebelrueckzugfedern an Schreibmaschinen | |
| DE3338646A1 (de) | Uebungsgeraet zum erlernen des kleinen einmaleins | |
| DE129127C (cs) | ||
| DE345946C (cs) | ||
| DE583547C (de) | Vorrichtung zur zahlenmaessigen Darstellung von Vorgaengen jeglicher Art | |
| DE278577C (cs) | ||
| DE541508C (de) | Additionsmaschine | |
| DE668347C (de) | Klammer zur Verbindung zweier sich kreuzender, senkrecht zueinander verlaufender Holz- oder Metallstaebe fuer Fachwerke oder Gerueste | |
| DE425644C (de) | Anzeigevorrichtung, insbesondere fuer Warenlager mit in neben- oder uebereinander befind-lichen Reihen vorgesehenen, verschiebbaren Anzeigeeinrichtungen (z. B. Anzeigebaendern) | |
| DE539742C (de) | Lehrmittel fuer den Rechenunterricht | |
| DE850977C (de) | Festspannvorrichtung fuer mechanisch zu bearbeitende Werkstuecke | |
| DE226164C (cs) | ||
| AT118530B (de) | Anordnung für Stangenwähler mit Flachbankvielfach. | |
| DE186352C (cs) | ||
| DE226646C (cs) | ||
| DE570501C (de) | Lesevorrichtung | |
| AT58025B (de) | Rechenvorrichtung. | |
| DE231911C (cs) | ||
| DE203611C (cs) | ||
| DE124580C (cs) | ||
| DE198926C (cs) | ||
| DE297142C (cs) | ||
| DE232106C (cs) |