FR959704A - - Google Patents
Info
- Publication number
- FR959704A FR959704A FR959704DA FR959704A FR 959704 A FR959704 A FR 959704A FR 959704D A FR959704D A FR 959704DA FR 959704 A FR959704 A FR 959704A
- 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
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR260185X | 1941-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR959704A true FR959704A (de) | 1950-04-04 |
Family
ID=8884958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR959704D Expired FR959704A (de) | 1941-07-11 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE447593A (de) |
| CH (1) | CH260185A (de) |
| FR (1) | FR959704A (de) |
-
0
- FR FR959704D patent/FR959704A/fr not_active Expired
- BE BE447593D patent/BE447593A/xx unknown
-
1943
- 1943-03-25 CH CH260185D patent/CH260185A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE447593A (de) | |
| CH260185A (fr) | 1949-02-28 |