BE430474A - - Google Patents
Info
- Publication number
- BE430474A BE430474A BE430474DA BE430474A BE 430474 A BE430474 A BE 430474A BE 430474D A BE430474D A BE 430474DA BE 430474 A BE430474 A BE 430474A
- 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 |
|---|---|---|---|
| NL205006X | 1937-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE430474A true BE430474A (en) |
Family
ID=19778509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE430474D BE430474A (en) | 1937-10-04 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE430474A (en) |
| CH (1) | CH205006A (en) |
| FR (1) | FR844304A (en) |
| GB (1) | GB504893A (en) |
Families Citing this family (1)
| 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 |
-
0
- BE BE430474D patent/BE430474A/xx unknown
-
1938
- 1938-10-01 GB GB28593/38A patent/GB504893A/en not_active Expired
- 1938-10-03 CH CH205006D patent/CH205006A/en unknown
- 1938-10-04 FR FR844304D patent/FR844304A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR844304A (en) | 1939-07-24 |
| CH205006A (en) | 1939-05-31 |
| GB504893A (en) | 1939-05-02 |