CH537642A - Lampe électrique à incandescence - Google Patents
Lampe électrique à incandescenceInfo
- Publication number
- CH537642A CH537642A CH1516771A CH1516771A CH537642A CH 537642 A CH537642 A CH 537642A CH 1516771 A CH1516771 A CH 1516771A CH 1516771 A CH1516771 A CH 1516771A CH 537642 A CH537642 A CH 537642A
- Authority
- CH
- Switzerland
- Prior art keywords
- electric lamp
- incandescent electric
- incandescent
- lamp
- electric
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
- H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB338469A GB1236174A (en) | 1969-01-21 | 1969-01-21 | Improvements in electric incandescent lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH537642A true CH537642A (fr) | 1973-07-13 |
Family
ID=9757318
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1516771A CH537642A (fr) | 1969-01-21 | 1969-12-18 | Lampe électrique à incandescence |
| CH1887669A CH515610A (fr) | 1969-01-21 | 1969-12-18 | Lampe électrique à incandescence et procédé pour sa fabrication |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1887669A CH515610A (fr) | 1969-01-21 | 1969-12-18 | Lampe électrique à incandescence et procédé pour sa fabrication |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT296425B (fr) |
| BE (1) | BE742908A (fr) |
| CH (2) | CH537642A (fr) |
| DE (1) | DE2001978C3 (fr) |
| FR (1) | FR2028773A1 (fr) |
| GB (1) | GB1236174A (fr) |
| NL (1) | NL159812B (fr) |
| SE (1) | SE368113B (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8302494D0 (en) * | 1983-01-29 | 1983-03-02 | Emi Plc Thorn | Tungsten halogen incandescent lamps |
-
1969
- 1969-01-21 GB GB338469A patent/GB1236174A/en not_active Expired
- 1969-11-28 NL NL6917901A patent/NL159812B/xx not_active IP Right Cessation
- 1969-12-10 BE BE742908D patent/BE742908A/xx unknown
- 1969-12-18 CH CH1516771A patent/CH537642A/fr not_active IP Right Cessation
- 1969-12-18 CH CH1887669A patent/CH515610A/fr not_active IP Right Cessation
- 1969-12-19 AT AT1184769A patent/AT296425B/de not_active IP Right Cessation
-
1970
- 1970-01-12 SE SE30670A patent/SE368113B/xx unknown
- 1970-01-15 FR FR7001418A patent/FR2028773A1/fr not_active Withdrawn
- 1970-01-17 DE DE19702001978 patent/DE2001978C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH515610A (fr) | 1971-11-15 |
| AT296425B (de) | 1972-02-10 |
| FR2028773A1 (fr) | 1970-10-16 |
| NL159812B (nl) | 1979-03-15 |
| DE2001978C3 (de) | 1974-05-16 |
| GB1236174A (en) | 1971-06-23 |
| DE2001978B2 (fr) | 1973-10-25 |
| SE368113B (fr) | 1974-06-17 |
| NL6917901A (fr) | 1970-07-23 |
| BE742908A (fr) | 1970-05-14 |
| DE2001978A1 (de) | 1970-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |