NL27739C - - Google Patents
Info
- Publication number
- NL27739C NL27739C NL47728A NL47728A NL27739C NL 27739 C NL27739 C NL 27739C NL 47728 A NL47728 A NL 47728A NL 47728 A NL47728 A NL 47728A NL 27739 C NL27739 C NL 27739C
- 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
- H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
- H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
-
- 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1933832X | 1928-08-21 | ||
| GB1915229A GB335258A (en) | 1929-06-21 | 1929-06-21 | Improvements in and relating to television receiving apparatus using electric glow discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27739C true NL27739C (en) | 1932-09-15 |
Family
ID=26011414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL47728A NL27739C (en) | 1928-08-21 | 1929-08-20 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1933832A (en) |
| FR (1) | FR680616A (en) |
| NL (1) | NL27739C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218269A (en) * | 1991-11-29 | 1993-06-08 | Gte Products Corporation | Negative glow discharge lamp having wire anode |
-
1929
- 1929-07-02 US US375524A patent/US1933832A/en not_active Expired - Lifetime
- 1929-08-20 NL NL47728A patent/NL27739C/xx active
- 1929-08-21 FR FR680616D patent/FR680616A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR680616A (en) | 1930-05-02 |
| US1933832A (en) | 1933-11-07 |