BE370025A - - Google Patents
Info
- Publication number
- BE370025A BE370025A BE370025DA BE370025A BE 370025 A BE370025 A BE 370025A BE 370025D A BE370025D A BE 370025DA BE 370025 A BE370025 A BE 370025A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL46586A NL29070C (ja�@�@) | 1929-06-01 | 1929-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE370025A true BE370025A (ja�@�@) | 1930-06-30 |
Family
ID=10141976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE370025D BE370025A (ja�@�@) | 1929-06-01 | 1930-05-05 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE370025A (ja�@�@) |
| FR (1) | FR695093A (ja�@�@) |
| GB (1) | GB335903A (ja�@�@) |
| NL (1) | NL29070C (ja�@�@) |
-
1929
- 1929-06-01 NL NL46586A patent/NL29070C/xx active
- 1929-07-01 GB GB2019529A patent/GB335903A/en not_active Expired
-
1930
- 1930-05-05 FR FR695093D patent/FR695093A/fr not_active Expired
- 1930-05-05 BE BE370025D patent/BE370025A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL29070C (ja�@�@) | 1932-03-15 |
| GB335903A (en) | 1930-10-01 |
| FR695093A (fr) | 1930-12-11 |