NL18450C - - Google Patents
Info
- Publication number
- NL18450C NL18450C NL18450DA NL18450C NL 18450 C NL18450 C NL 18450C NL 18450D A NL18450D A NL 18450DA NL 18450 C NL18450 C NL 18450C
- Authority
- NL
- Netherlands
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
- H01K3/02—Manufacture of incandescent bodies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US735074A US1594057A (en) | 1924-08-30 | 1924-08-30 | Electric incandescent device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL18450C true NL18450C (https=) |
Family
ID=24954252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL18450D NL18450C (https=) | 1924-08-30 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1594057A (https=) |
| DE (1) | DE429115C (https=) |
| FR (1) | FR602626A (https=) |
| GB (1) | GB239221A (https=) |
| NL (1) | NL18450C (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3759602A (en) * | 1971-08-30 | 1973-09-18 | Gen Electric | Inhibiting d-c notching effect in incandescent lamp filaments |
-
0
- NL NL18450D patent/NL18450C/xx active
-
1924
- 1924-08-30 US US735074A patent/US1594057A/en not_active Expired - Lifetime
- 1924-12-20 DE DEP49367D patent/DE429115C/de not_active Expired
-
1925
- 1925-08-25 FR FR602626D patent/FR602626A/fr not_active Expired
- 1925-08-27 GB GB21495/25A patent/GB239221A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB239221A (en) | 1925-10-22 |
| FR602626A (fr) | 1926-03-23 |
| US1594057A (en) | 1926-07-27 |
| DE429115C (de) | 1926-05-20 |