LU59223A1 - - Google Patents
Info
- Publication number
- LU59223A1 LU59223A1 LU59223DA LU59223A1 LU 59223 A1 LU59223 A1 LU 59223A1 LU 59223D A LU59223D A LU 59223DA LU 59223 A1 LU59223 A1 LU 59223A1
- Authority
- LU
- Luxembourg
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
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR162048 | 1968-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU59223A1 true LU59223A1 (de) | 1969-12-22 |
Family
ID=8653509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU59223D LU59223A1 (de) | 1968-08-06 | 1969-08-04 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE736701A (de) |
| DE (1) | DE1939658A1 (de) |
| FR (1) | FR1582598A (de) |
| GB (1) | GB1268808A (de) |
| LU (1) | LU59223A1 (de) |
| NL (1) | NL6911880A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697566B (zh) * | 2013-12-05 | 2017-05-10 | 凌通科技股份有限公司 | 使用光衰减装置的页面检测系统及方法 |
| CN108335630A (zh) * | 2018-01-19 | 2018-07-27 | 昆山国显光电有限公司 | 显示装置及电子产品 |
-
1968
- 1968-08-06 FR FR1582598D patent/FR1582598A/fr not_active Expired
-
1969
- 1969-07-29 BE BE736701D patent/BE736701A/xx unknown
- 1969-08-04 LU LU59223D patent/LU59223A1/xx unknown
- 1969-08-04 NL NL6911880A patent/NL6911880A/xx unknown
- 1969-08-04 GB GB3895269A patent/GB1268808A/en not_active Expired
- 1969-08-05 DE DE19691939658 patent/DE1939658A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1268808A (en) | 1972-03-29 |
| BE736701A (de) | 1969-12-31 |
| DE1939658A1 (de) | 1970-04-09 |
| FR1582598A (de) | 1969-10-03 |
| NL6911880A (de) | 1970-02-10 |