BE697340A - - Google Patents
Info
- Publication number
- BE697340A BE697340A BE697340DA BE697340A BE 697340 A BE697340 A BE 697340A BE 697340D A BE697340D A BE 697340DA BE 697340 A BE697340 A BE 697340A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
- H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
- H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR61989A FR1492121A (en) | 1966-05-18 | 1966-05-18 | Improvements to ion pumps |
| FR99193A FR91990E (en) | 1966-05-18 | 1967-03-17 | Improvements to ion pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE697340A true BE697340A (en) | 1967-10-23 |
Family
ID=26170721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE697340D BE697340A (en) | 1966-05-18 | 1967-04-21 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE697340A (en) |
| DE (1) | DE1539155A1 (en) |
| FR (2) | FR1492121A (en) |
| GB (1) | GB1182473A (en) |
-
1966
- 1966-05-18 FR FR61989A patent/FR1492121A/en not_active Expired
-
1967
- 1967-03-17 FR FR99193A patent/FR91990E/en not_active Expired
- 1967-04-21 BE BE697340D patent/BE697340A/xx unknown
- 1967-05-12 DE DE19671539155 patent/DE1539155A1/en active Pending
- 1967-05-18 GB GB2305367A patent/GB1182473A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR91990E (en) | 1968-09-06 |
| GB1182473A (en) | 1970-02-25 |
| DE1539155A1 (en) | 1970-03-05 |
| FR1492121A (en) | 1967-08-18 |