BE478497A - - Google Patents
Info
- Publication number
- BE478497A BE478497A BE478497DA BE478497A BE 478497 A BE478497 A BE 478497A BE 478497D A BE478497D A BE 478497DA BE 478497 A BE478497 A BE 478497A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR925098T | 1946-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE478497A true BE478497A (en:Method) |
Family
ID=9439844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE478497D BE478497A (en:Method) | 1946-03-21 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE478497A (en:Method) |
| CH (1) | CH267217A (en:Method) |
| FR (1) | FR925098A (en:Method) |
| GB (1) | GB634761A (en:Method) |
| NL (1) | NL138036C (en:Method) |
-
0
- NL NL138036D patent/NL138036C/xx active
- BE BE478497D patent/BE478497A/xx unknown
-
1946
- 1946-03-21 FR FR925098D patent/FR925098A/fr not_active Expired
-
1947
- 1947-12-30 CH CH267217D patent/CH267217A/fr unknown
- 1947-12-31 GB GB35078/47A patent/GB634761A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB634761A (en) | 1950-03-29 |
| NL138036C (en:Method) | |
| CH267217A (fr) | 1950-03-15 |
| FR925098A (fr) | 1947-08-25 |