FR537089A - Constructions pédagogiques démontables - Google Patents
Constructions pédagogiques démontablesInfo
- Publication number
- FR537089A FR537089A FR537089DA FR537089A FR 537089 A FR537089 A FR 537089A FR 537089D A FR537089D A FR 537089DA FR 537089 A FR537089 A FR 537089A
- Authority
- FR
- France
- Prior art keywords
- educational
- constructions
- detachable
- educational constructions
- detachable educational
- 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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
- G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Geometry (AREA)
- Business, Economics & Management (AREA)
- Algebra (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR537089T | 1921-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR537089A true FR537089A (fr) | 1922-05-15 |
Family
ID=8927250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR537089D Expired FR537089A (fr) | 1921-03-30 | 1921-03-30 | Constructions pédagogiques démontables |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR537089A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2872743A (en) * | 1957-03-07 | 1959-02-10 | Herbert J Feldhake | Demonstrator for the formula for the surface of a sphere |
US3457658A (en) * | 1966-04-15 | 1969-07-29 | Us Army | Collapsible crystal structure |
-
1921
- 1921-03-30 FR FR537089D patent/FR537089A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2872743A (en) * | 1957-03-07 | 1959-02-10 | Herbert J Feldhake | Demonstrator for the formula for the surface of a sphere |
US3457658A (en) * | 1966-04-15 | 1969-07-29 | Us Army | Collapsible crystal structure |
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