FR546460A - - Google Patents
Info
- Publication number
- FR546460A FR546460A FR546460DA FR546460A FR 546460 A FR546460 A FR 546460A FR 546460D A FR546460D A FR 546460DA FR 546460 A FR546460 A FR 546460A
- 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR546460A true FR546460A (da) | 1922-11-14 |
Family
ID=1537938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR546460D Expired FR546460A (da) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR546460A (da) |
-
0
- FR FR546460D patent/FR546460A/fr not_active Expired