CH477758A - Ionization manometer - Google Patents
Ionization manometerInfo
- Publication number
- CH477758A CH477758A CH573768A CH573768A CH477758A CH 477758 A CH477758 A CH 477758A CH 573768 A CH573768 A CH 573768A CH 573768 A CH573768 A CH 573768A CH 477758 A CH477758 A CH 477758A
- Authority
- CH
- Switzerland
- Prior art keywords
- ionization manometer
- manometer
- ionization
- Prior art date
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
- H01J41/04—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of thermionic cathodes
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6705600A NL6705600A (en) | 1967-04-21 | 1967-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH477758A true CH477758A (en) | 1969-08-31 |
Family
ID=19799913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH573768A CH477758A (en) | 1967-04-21 | 1968-04-18 | Ionization manometer |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH477758A (en) |
DE (1) | DE1698148A1 (en) |
FR (1) | FR1569962A (en) |
GB (1) | GB1227865A (en) |
NL (1) | NL6705600A (en) |
-
1967
- 1967-04-21 NL NL6705600A patent/NL6705600A/xx unknown
-
1968
- 1968-03-07 DE DE19681698148 patent/DE1698148A1/en active Pending
- 1968-04-18 GB GB1227865D patent/GB1227865A/en not_active Expired
- 1968-04-18 CH CH573768A patent/CH477758A/en not_active IP Right Cessation
- 1968-04-19 FR FR1569962D patent/FR1569962A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1227865A (en) | 1971-04-07 |
FR1569962A (en) | 1969-06-06 |
NL6705600A (en) | 1968-10-22 |
DE1698148A1 (en) | 1971-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |