DE278320C - - Google Patents
Info
- Publication number
- DE278320C DE278320C DENDAT278320D DE278320DA DE278320C DE 278320 C DE278320 C DE 278320C DE NDAT278320 D DENDAT278320 D DE NDAT278320D DE 278320D A DE278320D A DE 278320DA DE 278320 C DE278320 C DE 278320C
- Authority
- DE
- Germany
- Prior art keywords
- arithmetic
- slide
- slides
- symbols
- embedded
- 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
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)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| DE278320C true DE278320C (OSRAM) | 
Family
ID=534330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| DENDAT278320D Active DE278320C (OSRAM) | 
Country Status (1)
| Country | Link | 
|---|---|
| DE (1) | DE278320C (OSRAM) | 
- 
        0
        - DE DENDAT278320D patent/DE278320C/de active Active
 
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