NL250928A - - Google Patents
Info
- Publication number
- NL250928A NL250928A NL250928DA NL250928A NL 250928 A NL250928 A NL 250928A NL 250928D A NL250928D A NL 250928DA NL 250928 A NL250928 A NL 250928A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/24—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 |
|---|---|---|---|
| FR793407A FR1238269A (fr) | 1959-04-28 | 1959-04-28 | Perfectionnement à la réfrigération de tubes électroniques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL250928A true NL250928A (en:Method) |
Family
ID=8714248
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL130276D NL130276C (en:Method) | 1959-04-28 | ||
| NL250928D NL250928A (en:Method) | 1959-04-28 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL130276D NL130276C (en:Method) | 1959-04-28 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH367572A (en:Method) |
| DE (1) | DE1127495B (en:Method) |
| FR (1) | FR1238269A (en:Method) |
| GB (1) | GB940800A (en:Method) |
| NL (2) | NL250928A (en:Method) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2256757A (en) * | 1939-11-04 | 1941-09-23 | Allis Chalmers Mfg Co | Electrical valve control system |
-
0
- NL NL130276D patent/NL130276C/xx active
- NL NL250928D patent/NL250928A/xx unknown
-
1959
- 1959-04-28 FR FR793407A patent/FR1238269A/fr not_active Expired
-
1960
- 1960-04-26 GB GB1459460A patent/GB940800A/en not_active Expired
- 1960-04-27 CH CH476460A patent/CH367572A/fr unknown
- 1960-04-27 DE DEC21307A patent/DE1127495B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH367572A (fr) | 1963-02-28 |
| NL130276C (en:Method) | |
| FR1238269A (fr) | 1960-08-12 |
| GB940800A (en) | 1963-11-06 |
| DE1127495B (de) | 1962-04-12 |