NL31935C - - Google Patents
Info
- Publication number
- NL31935C NL31935C NL46900A NL46900A NL31935C NL 31935 C NL31935 C NL 31935C NL 46900 A NL46900 A NL 46900A NL 46900 A NL46900 A NL 46900A NL 31935 C NL31935 C NL 31935C
- 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
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL46900A NL31935C (da) | 1929-06-22 | 1929-06-22 | |
| GB2071429A GB336222A (en) | 1929-06-22 | 1929-07-05 | Improvements in or relating to electric discharge tubes |
| FR697232D FR697232A (fr) | 1929-06-22 | 1930-06-11 | Tube à décharges électriques |
| DE1930626399D DE626399C (de) | 1929-06-22 | 1930-06-13 | Elektrische Entladungsroehre zum Aussenden von Strahlen, bei der die Entladung ganz oder teilweise von dem Dampf eines Metalls getragen wird, der die Roehrenwandung angreift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL46900A NL31935C (da) | 1929-06-22 | 1929-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL31935C true NL31935C (da) | 1934-02-15 |
Family
ID=10150444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL46900A NL31935C (da) | 1929-06-22 | 1929-06-22 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE626399C (da) |
| FR (1) | FR697232A (da) |
| GB (1) | GB336222A (da) |
| NL (1) | NL31935C (da) |
-
1929
- 1929-06-22 NL NL46900A patent/NL31935C/xx active
- 1929-07-05 GB GB2071429A patent/GB336222A/en not_active Expired
-
1930
- 1930-06-11 FR FR697232D patent/FR697232A/fr not_active Expired
- 1930-06-13 DE DE1930626399D patent/DE626399C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE626399C (de) | 1936-02-25 |
| FR697232A (fr) | 1931-01-13 |
| GB336222A (en) | 1930-10-06 |