NL190943A - - Google Patents
Info
- Publication number
- NL190943A NL190943A NL190943DA NL190943A NL 190943 A NL190943 A NL 190943A NL 190943D A NL190943D A NL 190943DA NL 190943 A NL190943 A NL 190943A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
- H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D7/00—Gas processing apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE325150X | 1953-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL190943A true NL190943A (https=) |
Family
ID=6182610
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL190943D NL190943A (https=) | 1953-09-24 | ||
| NL98408D NL98408C (https=) | 1953-09-24 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL98408D NL98408C (https=) | 1953-09-24 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH325150A (https=) |
| GB (1) | GB754515A (https=) |
| NL (2) | NL98408C (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070283A (en) * | 1959-06-15 | 1962-12-25 | Ultek Corp | Vacuum pump |
| US3243649A (en) * | 1962-08-14 | 1966-03-29 | Gca Corp | Hot filament ionization gauge |
| US3278786A (en) * | 1963-07-16 | 1966-10-11 | Gca Corp | Magnetron type cold cathode ionization gauge having compression mounted cathode |
-
0
- NL NL190943D patent/NL190943A/xx unknown
- NL NL98408D patent/NL98408C/xx active
-
1954
- 1954-09-15 CH CH325150D patent/CH325150A/de unknown
- 1954-09-23 GB GB27546/54A patent/GB754515A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH325150A (de) | 1957-10-31 |
| GB754515A (en) | 1956-08-08 |
| NL98408C (https=) |