NL42535C - - Google Patents
Info
- Publication number
- NL42535C NL42535C NL42535DA NL42535C NL 42535 C NL42535 C NL 42535C NL 42535D A NL42535D A NL 42535DA NL 42535 C NL42535 C NL 42535C
- 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
- H01J1/15—Cathodes heated directly by an electric current
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US741370A US2133434A (en) | 1934-08-25 | 1934-08-25 | Electric discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42535C true NL42535C (https=) |
Family
ID=24980448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL42535D NL42535C (https=) | 1934-08-25 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2133434A (https=) |
| FR (1) | FR795644A (https=) |
| GB (1) | GB437251A (https=) |
| NL (1) | NL42535C (https=) |
-
0
- NL NL42535D patent/NL42535C/xx active
-
1934
- 1934-08-25 US US741370A patent/US2133434A/en not_active Expired - Lifetime
-
1935
- 1935-05-16 GB GB14408/35A patent/GB437251A/en not_active Expired
- 1935-08-10 FR FR795644D patent/FR795644A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2133434A (en) | 1938-10-18 |
| GB437251A (en) | 1935-10-25 |
| FR795644A (fr) | 1936-03-18 |