FR743386A - - Google Patents
Info
- Publication number
- FR743386A FR743386A FR743386DA FR743386A FR 743386 A FR743386 A FR 743386A FR 743386D A FR743386D A FR 743386DA FR 743386 A FR743386 A FR 743386A
- 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
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US572113A US2019331A (en) | 1931-10-30 | 1931-10-30 | Electric incandescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR743386A true FR743386A (enrdf_load_html_response) | 1933-03-29 |
Family
ID=24286396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR743386D Expired FR743386A (enrdf_load_html_response) | 1931-10-30 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2019331A (enrdf_load_html_response) |
| FR (1) | FR743386A (enrdf_load_html_response) |
| GB (1) | GB394557A (enrdf_load_html_response) |
-
0
- FR FR743386D patent/FR743386A/fr not_active Expired
-
1931
- 1931-10-30 US US572113A patent/US2019331A/en not_active Expired - Lifetime
-
1932
- 1932-10-31 GB GB30556/32A patent/GB394557A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB394557A (en) | 1933-06-29 |
| US2019331A (en) | 1935-10-29 |