BE440909A - - Google Patents
Info
- Publication number
- BE440909A BE440909A BE440909DA BE440909A BE 440909 A BE440909 A BE 440909A BE 440909D A BE440909D A BE 440909DA BE 440909 A BE440909 A BE 440909A
- Authority
- BE
- Belgium
- Prior art keywords
- crystals
- emi
- illuminating
- sag
- tungsten
- Prior art date
Links
- 239000013078 crystal Substances 0.000 description 12
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 238000007665 sagging Methods 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
Classifications
-
- 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
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR818158T | 1937-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440909A true BE440909A (mo) |
Family
ID=9268724
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440903D BE440903A (mo) | 1937-02-20 | ||
| BE440909D BE440909A (mo) | 1937-02-20 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440903D BE440903A (mo) | 1937-02-20 |
Country Status (2)
| Country | Link |
|---|---|
| BE (2) | BE440909A (mo) |
| FR (1) | FR818158A (mo) |
-
0
- BE BE440903D patent/BE440903A/fr unknown
- BE BE440909D patent/BE440909A/fr unknown
-
1937
- 1937-02-20 FR FR818158D patent/FR818158A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE440903A (mo) | |
| FR818158A (fr) | 1937-09-20 |
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