NL44755C - - Google Patents
Info
- Publication number
- NL44755C NL44755C NL44755DA NL44755C NL 44755 C NL44755 C NL 44755C NL 44755D A NL44755D A NL 44755DA NL 44755 C NL44755 C NL 44755C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/64—Cathode glow lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/76—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT364088X | 1929-07-30 | ||
| AT2213183X | 1929-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL44755C true NL44755C (es) |
Family
ID=32070364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL44755D NL44755C (es) | 1929-07-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2213182A (es) |
| BE (1) | BE372352A (es) |
| ES (1) | ES119015A1 (es) |
| FR (1) | FR699222A (es) |
| GB (2) | GB364088A (es) |
| NL (1) | NL44755C (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2607901A (en) * | 1946-12-31 | 1952-08-19 | Bell Telephone Labor Inc | Electronic discharge device |
-
0
- NL NL44755D patent/NL44755C/xx active
- BE BE372352D patent/BE372352A/xx unknown
-
1930
- 1930-07-17 ES ES0119015A patent/ES119015A1/es not_active Expired
- 1930-07-18 US US468884A patent/US2213182A/en not_active Expired - Lifetime
- 1930-07-22 FR FR699222D patent/FR699222A/fr not_active Expired
- 1930-07-25 GB GB22497/30A patent/GB364088A/en not_active Expired
- 1930-11-15 GB GB34454/30A patent/GB367351A/en not_active Expired
- 1930-11-20 US US497025A patent/US2213183A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR699222A (fr) | 1931-02-12 |
| GB364088A (en) | 1931-12-28 |
| BE372352A (es) | |
| ES119015A1 (es) | 1930-08-16 |
| GB367351A (en) | 1932-02-15 |
| US2213182A (en) | 1940-08-27 |
| US2213183A (en) | 1940-08-27 |