BE412442A - - Google Patents
Info
- Publication number
- BE412442A BE412442A BE412442DA BE412442A BE 412442 A BE412442 A BE 412442A BE 412442D A BE412442D A BE 412442DA BE 412442 A BE412442 A BE 412442A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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 |
|---|---|---|---|
| FR794850T | 1934-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE412442A true BE412442A (en:Method) |
Family
ID=9234302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE412442D BE412442A (en:Method) | 1934-11-29 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE412442A (en:Method) |
| FR (1) | FR794850A (en:Method) |
| GB (1) | GB453983A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2454332A (en) * | 1944-02-09 | 1948-11-23 | Percival H Mitchell | Lens for lighting equipment |
-
0
- BE BE412442D patent/BE412442A/xx unknown
-
1934
- 1934-11-29 FR FR794850D patent/FR794850A/fr not_active Expired
-
1935
- 1935-11-27 GB GB32898/35A patent/GB453983A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB453983A (en) | 1936-09-22 |
| FR794850A (fr) | 1936-02-26 |