BE427621A - - Google Patents
Info
- Publication number
- BE427621A BE427621A BE427621DA BE427621A BE 427621 A BE427621 A BE 427621A BE 427621D A BE427621D A BE 427621DA BE 427621 A BE427621 A BE 427621A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE204632X | 1937-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE427621A true BE427621A (de) |
Family
ID=5782871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE427621D BE427621A (de) | 1937-04-19 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2185025A (de) |
| BE (1) | BE427621A (de) |
| CH (1) | CH204632A (de) |
| FR (1) | FR836840A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468793A (en) * | 1943-12-06 | 1949-05-03 | Sperry Corp | High-frequency resistor |
| US2894166A (en) * | 1949-04-02 | 1959-07-07 | Heraeus Gmbh W C | Heat radiation devices |
| US3275879A (en) * | 1961-07-31 | 1966-09-27 | Ohmega Lab | Capsulated bulb and method of making the same |
-
0
- BE BE427621D patent/BE427621A/xx unknown
-
1938
- 1938-04-15 US US202312A patent/US2185025A/en not_active Expired - Lifetime
- 1938-04-16 CH CH204632D patent/CH204632A/de unknown
- 1938-04-19 FR FR836840D patent/FR836840A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR836840A (fr) | 1939-01-26 |
| US2185025A (en) | 1939-12-26 |
| CH204632A (de) | 1939-05-15 |