BE442487A - - Google Patents
Info
- Publication number
- BE442487A BE442487A BE442487DA BE442487A BE 442487 A BE442487 A BE 442487A BE 442487D A BE442487D A BE 442487DA BE 442487 A BE442487 A BE 442487A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL219513X | 1940-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442487A true BE442487A (ja�@�@) |
Family
ID=19779269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442487D BE442487A (ja�@�@) | 1940-08-14 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE442487A (ja�@�@) |
| CH (1) | CH219513A (ja�@�@) |
| DE (1) | DE758671C (ja�@�@) |
| FR (1) | FR876160A (ja�@�@) |
| GB (2) | GB552597A (ja�@�@) |
| NL (1) | NL58325C (ja�@�@) |
-
0
- NL NL58325D patent/NL58325C/xx active
- BE BE442487D patent/BE442487A/xx unknown
-
1941
- 1941-08-12 DE DEN44996D patent/DE758671C/de not_active Expired
- 1941-08-14 CH CH219513D patent/CH219513A/de unknown
- 1941-10-21 FR FR876160D patent/FR876160A/fr not_active Expired
- 1941-11-26 GB GB15246/41A patent/GB552597A/en not_active Expired
-
1945
- 1945-09-25 GB GB24901/45A patent/GB599510A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB599510A (en) | 1948-03-15 |
| FR876160A (fr) | 1942-10-29 |
| NL58325C (ja�@�@) | |
| DE758671C (de) | 1953-09-14 |
| GB552597A (en) | 1943-04-15 |
| CH219513A (de) | 1942-02-15 |