NL7114522A - - Google Patents
Info
- Publication number
- NL7114522A NL7114522A NL7114522A NL7114522A NL7114522A NL 7114522 A NL7114522 A NL 7114522A NL 7114522 A NL7114522 A NL 7114522A NL 7114522 A NL7114522 A NL 7114522A NL 7114522 A NL7114522 A NL 7114522A
- Authority
- NL
- Netherlands
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
- G09B1/00—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways
- G09B1/02—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements
- G09B1/16—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements the elements each bearing a plurality of different symbols, signs, or combinations of symbols and signs, only one symbol, sign, or combination thereof, of each element to be used at a time
- G09B1/28—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements the elements each bearing a plurality of different symbols, signs, or combinations of symbols and signs, only one symbol, sign, or combination thereof, of each element to be used at a time the elements being slidable
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Electrically Operated Instructional Devices (AREA)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5040170 | 1970-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7114522A true NL7114522A (xx) | 1972-04-25 |
Family
ID=10455773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7114522A NL7114522A (xx) | 1970-10-23 | 1971-10-21 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3757433A (xx) |
| AU (1) | AU3483171A (xx) |
| CH (1) | CH539312A (xx) |
| DE (1) | DE2152516A1 (xx) |
| FR (1) | FR2113361A5 (xx) |
| GB (1) | GB1313557A (xx) |
| IE (1) | IE35730B1 (xx) |
| IT (1) | IT939643B (xx) |
| NL (1) | NL7114522A (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002300618B2 (en) * | 2001-08-20 | 2006-12-21 | Keith Evan Jones | Word builder |
| US6769914B2 (en) | 2002-11-01 | 2004-08-03 | Kalyani Sundararajan | Arithmetic teaching device |
| US20100216101A1 (en) * | 2009-02-25 | 2010-08-26 | Jarom Chung | Method and device for teaching and/or calculating mathematics |
| US11450234B2 (en) * | 2018-02-26 | 2022-09-20 | Teresa A. Talbott | Binary counting device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1094570A (en) * | 1909-12-08 | 1914-04-28 | Arthur E Jacobs | Spelling-board. |
| US1006711A (en) * | 1911-01-14 | 1911-10-24 | Silas I Atwater | Tablet. |
| US1286157A (en) * | 1917-08-08 | 1918-11-26 | Hermilio Manuel Vizcarra | Educational apparatus. |
-
1970
- 1970-10-23 GB GB5040170A patent/GB1313557A/en not_active Expired
-
1971
- 1971-10-14 IE IE1288/71A patent/IE35730B1/xx unknown
- 1971-10-18 US US00189911A patent/US3757433A/en not_active Expired - Lifetime
- 1971-10-20 AU AU34831/71A patent/AU3483171A/en not_active Expired
- 1971-10-21 NL NL7114522A patent/NL7114522A/xx unknown
- 1971-10-21 IT IT53623/71A patent/IT939643B/it active
- 1971-10-21 CH CH1537471A patent/CH539312A/fr not_active IP Right Cessation
- 1971-10-21 FR FR7138861A patent/FR2113361A5/fr not_active Expired
- 1971-10-21 DE DE19712152516 patent/DE2152516A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IE35730B1 (en) | 1976-05-12 |
| AU3483171A (en) | 1973-05-03 |
| IT939643B (it) | 1973-02-10 |
| IE35730L (en) | 1972-04-23 |
| CH539312A (fr) | 1973-07-15 |
| FR2113361A5 (xx) | 1972-06-23 |
| GB1313557A (en) | 1973-04-11 |
| US3757433A (en) | 1973-09-11 |
| DE2152516A1 (de) | 1972-05-04 |