NL31985C - - Google Patents
Info
- Publication number
- NL31985C NL31985C NL31985DA NL31985C NL 31985 C NL31985 C NL 31985C NL 31985D A NL31985D A NL 31985DA NL 31985 C NL31985 C NL 31985C
- Authority
- NL
- Netherlands
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
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL732327X | 1931-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL31985C true NL31985C (https=) |
Family
ID=19820300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL31985D NL31985C (https=) | 1931-02-02 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR732327A (https=) |
| NL (1) | NL31985C (https=) |
-
0
- NL NL31985D patent/NL31985C/xx active
-
1932
- 1932-02-02 FR FR732327D patent/FR732327A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR732327A (fr) | 1932-09-19 |