NL49383C - - Google Patents
Info
- Publication number
- NL49383C NL49383C NL49383DA NL49383C NL 49383 C NL49383 C NL 49383C NL 49383D A NL49383D A NL 49383DA NL 49383 C NL49383 C NL 49383C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
-
- 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
- H01K1/50—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 |
|---|---|---|---|
| AT153448T | 1936-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL49383C true NL49383C (en:Method) |
Family
ID=3647578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49383D NL49383C (en:Method) | 1936-09-12 |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT153448B (en:Method) |
| FR (1) | FR826612A (en:Method) |
| GB (1) | GB481063A (en:Method) |
| NL (1) | NL49383C (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501776A1 (de) * | 1985-01-21 | 1986-07-24 | Paul Prof. Dr. 7500 Karlsruhe Schulz | Gluehlampen hoher lichtausbeute |
| WO2003088293A2 (en) * | 2002-04-12 | 2003-10-23 | Philips Intellectual Property & Standards Gmbh | Lamp having an inner and an outer vessel |
-
0
- NL NL49383D patent/NL49383C/xx active
-
1936
- 1936-09-12 AT AT153448D patent/AT153448B/de active
-
1937
- 1937-05-03 GB GB12565/37A patent/GB481063A/en not_active Expired
- 1937-09-11 FR FR826612D patent/FR826612A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT153448B (de) | 1938-05-25 |
| GB481063A (en) | 1938-03-04 |
| FR826612A (fr) | 1938-04-06 |