NL50134C - - Google Patents
Info
- Publication number
- NL50134C NL50134C NL50134DA NL50134C NL 50134 C NL50134 C NL 50134C NL 50134D A NL50134D A NL 50134DA NL 50134 C NL50134 C NL 50134C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
- H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU490736X | 1937-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL50134C true NL50134C (en:Method) |
Family
ID=10979345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL50134D NL50134C (en:Method) | 1937-02-19 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE717963C (en:Method) |
| FR (1) | FR833684A (en:Method) |
| GB (1) | GB490736A (en:Method) |
| NL (1) | NL50134C (en:Method) |
-
0
- NL NL50134D patent/NL50134C/xx active
-
1938
- 1938-02-08 DE DEV34560D patent/DE717963C/de not_active Expired
- 1938-02-12 FR FR833684D patent/FR833684A/fr not_active Expired
- 1938-02-19 GB GB5325/38A patent/GB490736A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR833684A (fr) | 1938-10-27 |
| DE717963C (de) | 1942-02-26 |
| GB490736A (en) | 1938-08-19 |