BE350525A - - Google Patents
Info
- Publication number
- BE350525A BE350525A BE350525DA BE350525A BE 350525 A BE350525 A BE 350525A BE 350525D A BE350525D A BE 350525DA BE 350525 A BE350525 A BE 350525A
- Authority
- BE
- Belgium
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
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US185548A US1658653A (en) | 1927-04-21 | 1927-04-21 | Vacuum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE350525A true BE350525A (ja�@�@) |
Family
ID=22681459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE350525D BE350525A (ja�@�@) | 1927-04-21 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1658653A (ja�@�@) |
| BE (1) | BE350525A (ja�@�@) |
| FR (1) | FR652567A (ja�@�@) |
| GB (1) | GB289056A (ja�@�@) |
-
0
- BE BE350525D patent/BE350525A/xx unknown
-
1927
- 1927-04-21 US US185548A patent/US1658653A/en not_active Expired - Lifetime
-
1928
- 1928-04-06 FR FR652567D patent/FR652567A/fr not_active Expired
- 1928-04-18 GB GB11455/28A patent/GB289056A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB289056A (en) | 1928-10-25 |
| FR652567A (fr) | 1929-03-11 |
| US1658653A (en) | 1928-02-07 |