FR1549006A - - Google Patents
Info
- Publication number
- FR1549006A FR1549006A FR1549006DA FR1549006A FR 1549006 A FR1549006 A FR 1549006A FR 1549006D A FR1549006D A FR 1549006DA FR 1549006 A FR1549006 A FR 1549006A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/24—Insulating layer or body located between heater and emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6618058A NL157743B (en) | 1966-12-23 | 1966-12-23 | INDIRECTLY HEATED CATHODE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1549006A true FR1549006A (en) | 1968-12-06 |
Family
ID=19798531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1549006D Expired FR1549006A (en) | 1966-12-23 | 1967-12-21 |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT278183B (en) |
| BE (1) | BE708387A (en) |
| CH (1) | CH469346A (en) |
| DK (1) | DK118414B (en) |
| ES (1) | ES364237A1 (en) |
| FR (1) | FR1549006A (en) |
| GB (1) | GB1188668A (en) |
| NL (1) | NL157743B (en) |
| NO (1) | NO121225B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0389228B1 (en) * | 1989-03-24 | 1995-01-25 | Mitsubishi Denki Kabushiki Kaisha | High temperature operating element |
| DE4026301A1 (en) * | 1990-08-20 | 1992-02-27 | Siemens Ag | ELECTRON EMITTER OF A X-RAY TUBE |
-
1966
- 1966-12-23 NL NL6618058A patent/NL157743B/en not_active IP Right Cessation
-
1967
- 1967-12-20 DK DK639667A patent/DK118414B/en unknown
- 1967-12-20 GB GB5790467A patent/GB1188668A/en not_active Expired
- 1967-12-20 AT AT1151067A patent/AT278183B/en active
- 1967-12-20 CH CH1791367A patent/CH469346A/en unknown
- 1967-12-20 NO NO17108567A patent/NO121225B/no unknown
- 1967-12-21 BE BE708387D patent/BE708387A/xx unknown
- 1967-12-21 FR FR1549006D patent/FR1549006A/fr not_active Expired
-
1969
- 1969-02-28 ES ES364237A patent/ES364237A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK118414B (en) | 1970-08-17 |
| NO121225B (en) | 1971-02-01 |
| GB1188668A (en) | 1970-04-22 |
| DE1614295A1 (en) | 1970-08-20 |
| ES364237A1 (en) | 1971-02-16 |
| CH469346A (en) | 1969-02-28 |
| NL157743B (en) | 1978-08-15 |
| BE708387A (en) | 1968-06-21 |
| AT278183B (en) | 1970-01-26 |
| NL6618058A (en) | 1968-06-24 |
| DE1614295B2 (en) | 1976-02-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |