NL9605C - - Google Patents
Info
- Publication number
- NL9605C NL9605C NL18365A NL18365A NL9605C NL 9605 C NL9605 C NL 9605C NL 18365 A NL18365 A NL 18365A NL 18365 A NL18365 A NL 18365A NL 9605 C NL9605 C NL 9605C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US354195A US1531966A (en) | 1920-01-26 | 1920-01-26 | Electrical glow device |
| GB31340/20A GB175032A (en) | 1920-01-26 | 1920-11-05 | Improvements in and relating to electric luminous devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL9605C true NL9605C (fr) | 1923-09-15 |
Family
ID=26260856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL18365A NL9605C (fr) | 1920-01-26 | 1921-03-12 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1531966A (fr) |
| DE (1) | DE399244C (fr) |
| FR (1) | FR537546A (fr) |
| GB (1) | GB175032A (fr) |
| NL (1) | NL9605C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2617068A (en) * | 1948-12-15 | 1952-11-04 | Fkg Fritz Kesselring Geratebau | Vacuum-tight glass-metal joint for vessels containing cesium vapor |
-
1920
- 1920-01-26 US US354195A patent/US1531966A/en not_active Expired - Lifetime
- 1920-11-05 GB GB31340/20A patent/GB175032A/en not_active Expired
-
1921
- 1921-01-21 DE DEJ21167D patent/DE399244C/de not_active Expired
- 1921-01-25 FR FR537546D patent/FR537546A/fr not_active Expired
- 1921-03-12 NL NL18365A patent/NL9605C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| US1531966A (en) | 1925-03-31 |
| GB175032A (en) | 1922-02-06 |
| DE399244C (de) | 1924-07-21 |
| FR537546A (fr) | 1922-05-24 |