FR713386A - Improvements to abacuses intended for teaching - Google Patents
Improvements to abacuses intended for teachingInfo
- Publication number
- FR713386A FR713386A FR713386DA FR713386A FR 713386 A FR713386 A FR 713386A FR 713386D A FR713386D A FR 713386DA FR 713386 A FR713386 A FR 713386A
- Authority
- FR
- France
- Prior art keywords
- abacuses
- teaching
- intended
- abacuses intended
- 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.)
- Expired
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR713386T | 1931-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR713386A true FR713386A (en) | 1931-10-27 |
Family
ID=9083237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR713386D Expired FR713386A (en) | 1931-03-17 | 1931-03-17 | Improvements to abacuses intended for teaching |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR713386A (en) |
-
1931
- 1931-03-17 FR FR713386D patent/FR713386A/en not_active Expired
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