FR2175465A5 - - Google Patents
Info
- Publication number
- FR2175465A5 FR2175465A5 FR7307889A FR7307889A FR2175465A5 FR 2175465 A5 FR2175465 A5 FR 2175465A5 FR 7307889 A FR7307889 A FR 7307889A FR 7307889 A FR7307889 A FR 7307889A FR 2175465 A5 FR2175465 A5 FR 2175465A5
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
- H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
- H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23182872A | 1972-03-06 | 1972-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2175465A5 true FR2175465A5 (nl) | 1973-10-19 |
Family
ID=22870778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7307889A Expired FR2175465A5 (nl) | 1972-03-06 | 1973-03-06 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3781133A (nl) |
JP (1) | JPS48104109A (nl) |
DE (1) | DE2311083A1 (nl) |
FR (1) | FR2175465A5 (nl) |
IL (1) | IL41704A0 (nl) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2826501B1 (de) * | 1978-06-16 | 1979-11-08 | Siemens Ag | Evakuierungsvorrichtung zur Erzeugung eines Isoliervakuums um die supraleitende Wicklung eines Rotors |
US9960026B1 (en) * | 2013-11-11 | 2018-05-01 | Coldquanta Inc. | Ion pump with direct molecule flow channel through anode |
-
1972
- 1972-03-06 US US00231828A patent/US3781133A/en not_active Expired - Lifetime
-
1973
- 1973-03-06 DE DE19732311083 patent/DE2311083A1/de active Pending
- 1973-03-06 IL IL41704A patent/IL41704A0/xx unknown
- 1973-03-06 JP JP48026542A patent/JPS48104109A/ja active Pending
- 1973-03-06 FR FR7307889A patent/FR2175465A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3781133A (en) | 1973-12-25 |
DE2311083A1 (de) | 1973-09-13 |
JPS48104109A (nl) | 1973-12-27 |
IL41704A0 (en) | 1973-05-31 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |