NL31220C - - Google Patents
Info
- Publication number
- NL31220C NL31220C NL31220DA NL31220C NL 31220 C NL31220 C NL 31220C NL 31220D A NL31220D A NL 31220DA NL 31220 C NL31220 C NL 31220C
- Authority
- NL
- Netherlands
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Aerials With Secondary Devices (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR682145T | 1929-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL31220C true NL31220C (es) |
Family
ID=9023168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL31220D NL31220C (es) | 1929-09-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1938003A (es) |
| BE (1) | BE372482A (es) |
| FR (1) | FR682145A (es) |
| GB (1) | GB351320A (es) |
| NL (1) | NL31220C (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2494879A (en) * | 1946-06-17 | 1950-01-17 | Journel Jacques | Apparatus for projecting sunlight onto public exhibits and advertising subjects |
| US2712772A (en) * | 1952-07-24 | 1955-07-12 | Ceutre Nat De La Rech Scient | Self-regulating automatic heliostat reflecting mirror device |
| US2951163A (en) * | 1956-08-03 | 1960-08-30 | Hoffman Electronics Corp | Versatile solar powered radio receiver or the like |
| US3231743A (en) * | 1962-03-13 | 1966-01-25 | Radiation Inc | Optical fiber acquisition and tracking system |
| GR82284B (es) * | 1980-07-24 | 1984-12-13 | Messerschmitt Boelkow Blohm |
-
0
- BE BE372482D patent/BE372482A/xx unknown
- NL NL31220D patent/NL31220C/xx active
-
1929
- 1929-09-21 FR FR682145D patent/FR682145A/fr not_active Expired
-
1930
- 1930-08-15 US US475520A patent/US1938003A/en not_active Expired - Lifetime
- 1930-08-27 GB GB25628/30A patent/GB351320A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB351320A (en) | 1931-06-25 |
| US1938003A (en) | 1933-12-05 |
| FR682145A (fr) | 1930-05-23 |
| BE372482A (es) |