NL44138C - - Google Patents
Info
- Publication number
- NL44138C NL44138C NL44138DA NL44138C NL 44138 C NL44138 C NL 44138C NL 44138D A NL44138D A NL 44138DA NL 44138 C NL44138 C NL 44138C
- Authority
- NL
- Netherlands
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
- H01J1/26—Supports for the emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE457070X | 1935-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL44138C true NL44138C (ja�@�@) |
Family
ID=6539259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL44138D NL44138C (ja�@�@) | 1935-01-11 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE413114A (ja�@�@) |
| FR (1) | FR800344A (ja�@�@) |
| GB (1) | GB457070A (ja�@�@) |
| NL (1) | NL44138C (ja�@�@) |
-
0
- NL NL44138D patent/NL44138C/xx active
- BE BE413114D patent/BE413114A/xx unknown
-
1935
- 1935-10-17 GB GB28764/35A patent/GB457070A/en not_active Expired
-
1936
- 1936-01-03 FR FR800344D patent/FR800344A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE413114A (ja�@�@) | |
| FR800344A (fr) | 1936-07-02 |
| GB457070A (en) | 1936-11-20 |