BE434243A - - Google Patents
Info
- Publication number
- BE434243A BE434243A BE434243DA BE434243A BE 434243 A BE434243 A BE 434243A BE 434243D A BE434243D A BE 434243DA BE 434243 A BE434243 A BE 434243A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/34—Double wall vessels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE521331X | 1938-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE434243A true BE434243A (es) |
Family
ID=6551324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE434243D BE434243A (es) | 1938-05-10 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE434243A (es) |
| FR (1) | FR854500A (es) |
| GB (1) | GB521331A (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4598225A (en) * | 1983-02-25 | 1986-07-01 | Gte Products Corporation | Electric lamp with high outer-envelope to inner-envelope wall-thickness ratio |
| CA1305995C (en) * | 1987-08-28 | 1992-08-04 | William M. Keeffe | Double-enveloped lamp having a shield surrounding a light-source capsule within a thick-walled outer envelope |
-
0
- BE BE434243D patent/BE434243A/xx unknown
-
1939
- 1939-05-08 GB GB13767/39A patent/GB521331A/en not_active Expired
- 1939-05-09 FR FR854500D patent/FR854500A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB521331A (en) | 1940-05-17 |
| FR854500A (fr) | 1940-04-16 |