BE428541A - - Google Patents
Info
- Publication number
- BE428541A BE428541A BE428541DA BE428541A BE 428541 A BE428541 A BE 428541A BE 428541D A BE428541D A BE 428541DA BE 428541 A BE428541 A BE 428541A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL205004X | 1937-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428541A true BE428541A (xx) |
Family
ID=19778508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428541D BE428541A (xx) | 1937-06-12 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2211597A (xx) |
| BE (1) | BE428541A (xx) |
| CH (1) | CH205004A (xx) |
| DE (1) | DE707824C (xx) |
| FR (1) | FR839169A (xx) |
| GB (1) | GB512083A (xx) |
| NL (1) | NL52995C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3435272A (en) * | 1966-07-15 | 1969-03-25 | Gen Electric | Tubular halogen cycle incandescent lamp with inner cylinder for universal operation |
-
0
- NL NL52995D patent/NL52995C/xx active
- BE BE428541D patent/BE428541A/xx unknown
-
1938
- 1938-06-06 US US212178A patent/US2211597A/en not_active Expired - Lifetime
- 1938-06-09 GB GB17179/38A patent/GB512083A/en not_active Expired
- 1938-06-10 FR FR839169D patent/FR839169A/fr not_active Expired
- 1938-06-10 DE DEN42076D patent/DE707824C/de not_active Expired
- 1938-06-10 CH CH205004D patent/CH205004A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL52995C (xx) | |
| DE707824C (de) | 1941-07-04 |
| US2211597A (en) | 1940-08-13 |
| GB512083A (en) | 1939-08-29 |
| CH205004A (de) | 1939-05-31 |
| FR839169A (fr) | 1939-03-28 |