DE252768C - - Google Patents
Info
- Publication number
- DE252768C DE252768C DENDAT252768D DE252768DA DE252768C DE 252768 C DE252768 C DE 252768C DE NDAT252768 D DENDAT252768 D DE NDAT252768D DE 252768D A DE252768D A DE 252768DA DE 252768 C DE252768 C DE 252768C
- Authority
- DE
- Germany
- Prior art keywords
- tube
- incandescent lamp
- attached
- ring
- filaments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01K3/08—Manufacture of mounts or stems
- H01K3/10—Machines therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191203348T | 1912-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE252768C true DE252768C (xx) |
Family
ID=32570085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT252768D Active DE252768C (xx) | 1912-02-09 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE252768C (xx) |
FR (1) | FR440505A (xx) |
GB (1) | GB191203348A (xx) |
-
0
- DE DENDAT252768D patent/DE252768C/de active Active
-
1912
- 1912-02-09 GB GB191203348D patent/GB191203348A/en not_active Expired
- 1912-02-23 FR FR440505A patent/FR440505A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB191203348A (en) | 1912-08-08 |
FR440505A (fr) | 1912-07-12 |
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