BE554054A - - Google Patents
Info
- Publication number
- BE554054A BE554054A BE554054DA BE554054A BE 554054 A BE554054 A BE 554054A BE 554054D A BE554054D A BE 554054DA BE 554054 A BE554054 A BE 554054A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
-
- 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 |
|---|---|---|---|
| US821465XA | 1956-01-16 | 1956-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE554054A true BE554054A (fr) |
Family
ID=22169347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE554054D BE554054A (fr) | 1956-01-16 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE554054A (fr) |
| DE (1) | DE1200433B (fr) |
| FR (1) | FR1164087A (fr) |
| GB (1) | GB821465A (fr) |
| NL (2) | NL213766A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL262249A (fr) * | 1960-03-11 | |||
| DE1270684B (de) * | 1961-07-26 | 1968-06-20 | Philips Nv | Gasgefuellte Gluehlampe mit einem Wolfram-Gluehkoerper und Verfahren zu ihrer Herstellung |
| BE620606A (fr) * | 1961-07-26 | |||
| GB1047302A (fr) * | 1963-03-28 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT10073B (de) * | 1900-05-02 | 1902-12-10 | Alf Sinding-Larsen | Elektrische Glühlampe. |
| CH116682A (de) * | 1925-03-18 | 1926-09-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Gasgefüllte elektrische Lampe. |
| GB295072A (en) * | 1927-05-13 | 1928-08-09 | Siemens Electric Lamps & Suppl | Improvements in and relating to gas-filled electric lamps |
| DE615371C (de) * | 1933-08-02 | 1935-07-03 | Naamlooze Vennootschap Machine | Gasgefuellte Wolframfaden-Gluehlampe |
| US2072788A (en) * | 1935-06-15 | 1937-03-02 | Mary Andrews Westendorp | Tantalum carbide lamp |
| FR1063063A (fr) * | 1952-04-11 | 1954-04-29 | Polaroid Corp | Perfectionnements aux lampes électriques |
-
0
- NL NL108831D patent/NL108831C/xx active
- NL NL213766D patent/NL213766A/xx unknown
- BE BE554054D patent/BE554054A/xx unknown
-
1957
- 1957-01-05 DE DEU4312A patent/DE1200433B/de active Pending
- 1957-01-07 FR FR1164087D patent/FR1164087A/fr not_active Expired
- 1957-01-15 GB GB1443/57A patent/GB821465A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB821465A (en) | 1959-10-07 |
| NL108831C (fr) | |
| NL213766A (fr) | |
| DE1200433B (de) | 1965-09-09 |
| FR1164087A (fr) | 1958-10-06 |