BE432141A - - Google Patents
Info
- Publication number
- BE432141A BE432141A BE432141DA BE432141A BE 432141 A BE432141 A BE 432141A BE 432141D A BE432141D A BE 432141DA BE 432141 A BE432141 A BE 432141A
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
-
- 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 |
|---|---|---|---|
| CH512791X | 1938-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE432141A true BE432141A (en:Method) |
Family
ID=4517538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE432141D BE432141A (en:Method) | 1938-01-27 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE432141A (en:Method) |
| CH (1) | CH207792A (en:Method) |
| FR (1) | FR849075A (en:Method) |
| GB (1) | GB512791A (en:Method) |
| NL (1) | NL56036C (en:Method) |
-
0
- NL NL56036D patent/NL56036C/xx active
- BE BE432141D patent/BE432141A/xx unknown
-
1938
- 1938-01-27 CH CH207792D patent/CH207792A/fr unknown
- 1938-03-15 GB GB8018/38A patent/GB512791A/en not_active Expired
-
1939
- 1939-01-18 FR FR849075D patent/FR849075A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR849075A (fr) | 1939-11-14 |
| NL56036C (en:Method) | |
| GB512791A (en) | 1939-09-26 |
| CH207792A (fr) | 1939-11-30 |