BE428542A - - Google Patents
Info
- Publication number
- BE428542A BE428542A BE428542DA BE428542A BE 428542 A BE428542 A BE 428542A BE 428542D A BE428542D A BE 428542DA BE 428542 A BE428542 A BE 428542A
- 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
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/58—Cooling arrangements
-
- 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 |
|---|---|---|---|
| NL206539X | 1937-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428542A true BE428542A (en) |
Family
ID=19778583
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428542D BE428542A (en) | 1937-06-12 | ||
| BE428543D BE428543A (en) | 1937-06-12 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428543D BE428543A (en) | 1937-06-12 |
Country Status (5)
| Country | Link |
|---|---|
| BE (2) | BE428543A (en) |
| CH (1) | CH206539A (en) |
| DE (2) | DE699404C (en) |
| FR (2) | FR839199A (en) |
| GB (2) | GB515704A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1112785B (en) * | 1955-07-08 | 1961-08-17 | Sylvania Electric Prod | High frequency heated incandescent lamp |
| BR8400807A (en) * | 1983-02-25 | 1984-10-02 | Gte Prod Corp | ELECTRIC HALOGEN / TUNGSTEN LAMP WITH PERMEATABLE ELEMENT CLOSING THE EXTERNAL HOUSING |
| RU2485395C1 (en) * | 2012-02-22 | 2013-06-20 | Юлия Алексеевна Щепочкина | Led lamp bulb |
-
0
- BE BE428542D patent/BE428542A/xx unknown
- BE BE428543D patent/BE428543A/xx unknown
-
1938
- 1938-06-09 GB GB17180/38A patent/GB515704A/en not_active Expired
- 1938-06-10 CH CH206539D patent/CH206539A/en unknown
- 1938-06-10 DE DE1938N0042078 patent/DE699404C/en not_active Expired
- 1938-06-10 DE DEN42077D patent/DE725341C/en not_active Expired
- 1938-06-11 FR FR839199D patent/FR839199A/en not_active Expired
- 1938-06-11 FR FR839200D patent/FR839200A/en not_active Expired
- 1938-06-13 GB GB17567/38A patent/GB518016A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR839199A (en) | 1939-03-28 |
| GB515704A (en) | 1939-12-12 |
| GB518016A (en) | 1940-02-15 |
| CH206539A (en) | 1939-08-15 |
| BE428543A (en) | |
| DE699404C (en) | 1940-11-28 |
| DE725341C (en) | 1942-09-19 |
| FR839200A (en) | 1939-03-28 |