NL74217C - - Google Patents
Info
- Publication number
- NL74217C NL74217C NL74217DA NL74217C NL 74217 C NL74217 C NL 74217C NL 74217D A NL74217D A NL 74217DA NL 74217 C NL74217 C NL 74217C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB273237X | 1948-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74217C true NL74217C (sk) |
Family
ID=10257719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL74217D NL74217C (sk) | 1948-05-06 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2527552A (sk) |
| CH (1) | CH273237A (sk) |
| FR (1) | FR985678A (sk) |
| GB (1) | GB677884A (sk) |
| NL (1) | NL74217C (sk) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647221A (en) * | 1951-04-16 | 1953-07-28 | Northrop Aircraft Inc | Poly-anode flip-flop tube |
| US3070718A (en) * | 1959-06-27 | 1962-12-25 | Telefunken Gmbh | Multiple-gap gas discharge tube |
| US3531654A (en) * | 1967-03-06 | 1970-09-29 | Robert L Eby | Solid state substitute for a dual triode electron tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2447377A (en) * | 1945-12-10 | 1948-08-17 | Bendix Aviat Corp | Device for regulating electrical discharge |
-
0
- NL NL74217D patent/NL74217C/xx active
-
1948
- 1948-05-06 GB GB12489/48A patent/GB677884A/en not_active Expired
-
1949
- 1949-05-04 FR FR985678D patent/FR985678A/fr not_active Expired
- 1949-05-05 US US91578A patent/US2527552A/en not_active Expired - Lifetime
- 1949-05-06 CH CH273237D patent/CH273237A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB677884A (en) | 1952-08-27 |
| FR985678A (fr) | 1951-07-23 |
| CH273237A (de) | 1951-01-31 |
| US2527552A (en) | 1950-10-31 |