FR530141A - - Google Patents
Info
- Publication number
- FR530141A FR530141A FR530141DA FR530141A FR 530141 A FR530141 A FR 530141A FR 530141D A FR530141D A FR 530141DA FR 530141 A FR530141 A FR 530141A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US475351A US1549716A (en) | 1921-06-06 | 1921-06-06 | Electric gas lamp with glow discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR530141A true FR530141A (en) | 1921-12-16 |
Family
ID=23887190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR530141D Expired FR530141A (en) | 1921-06-06 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1549716A (en) |
| FR (1) | FR530141A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3416020A (en) * | 1966-02-14 | 1968-12-10 | Los Angeles Miniature Products | Filament display device including a rigid, light-absorbing, support panel |
-
0
- FR FR530141D patent/FR530141A/fr not_active Expired
-
1921
- 1921-06-06 US US475351A patent/US1549716A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1549716A (en) | 1925-08-11 |