FR836840A - Incandescent electric lamp - Google Patents
Incandescent electric lampInfo
- Publication number
- FR836840A FR836840A FR836840DA FR836840A FR 836840 A FR836840 A FR 836840A FR 836840D A FR836840D A FR 836840DA FR 836840 A FR836840 A FR 836840A
- Authority
- FR
- France
- Prior art keywords
- electric lamp
- incandescent electric
- incandescent
- lamp
- electric
- Prior art date
- 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
- 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 |
---|---|
FR836840A true FR836840A (en) | 1939-01-26 |
Family
ID=5782871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR836840D Expired FR836840A (en) | 1937-04-19 | 1938-04-19 | Incandescent electric lamp |
Country Status (4)
Country | Link |
---|---|
US (1) | US2185025A (en) |
BE (1) | BE427621A (en) |
CH (1) | CH204632A (en) |
FR (1) | FR836840A (en) |
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/en unknown
- 1938-04-19 FR FR836840D patent/FR836840A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE427621A (en) | |
CH204632A (en) | 1939-05-15 |
US2185025A (en) | 1939-12-26 |
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