BE384760A - - Google Patents
Info
- Publication number
- BE384760A BE384760A BE384760DA BE384760A BE 384760 A BE384760 A BE 384760A BE 384760D A BE384760D A BE 384760DA BE 384760 A BE384760 A BE 384760A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/26—Details or accessories
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE397162X | 1908-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE384760A true BE384760A (en:Method) |
Family
ID=6397163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE384760D BE384760A (en:Method) | 1930-12-06 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE384760A (en:Method) |
| FR (2) | FR397162A (en:Method) |
| GB (1) | GB397162A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE457033B (sv) * | 1985-05-23 | 1988-11-21 | Lumalampan Ab | Kompaktlysroer |
| US4786841A (en) * | 1987-06-22 | 1988-11-22 | Gte Products Corporation | Low-pressure arc discharge lamp having increased surface brightness |
-
0
- BE BE384760D patent/BE384760A/xx unknown
-
1908
- 1908-12-08 FR FR397162D patent/FR397162A/fr not_active Expired
-
1931
- 1931-12-05 FR FR727891D patent/FR727891A/fr not_active Expired
- 1931-12-07 GB GB33915/31A patent/GB397162A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR727891A (fr) | 1932-06-25 |
| GB397162A (en) | 1933-08-08 |
| FR397162A (fr) | 1909-04-30 |