JPH02131244U - - Google Patents
Info
- Publication number
- JPH02131244U JPH02131244U JP3965589U JP3965589U JPH02131244U JP H02131244 U JPH02131244 U JP H02131244U JP 3965589 U JP3965589 U JP 3965589U JP 3965589 U JP3965589 U JP 3965589U JP H02131244 U JPH02131244 U JP H02131244U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- pillars
- holding device
- heater
- hot cathode
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Electron Sources, Ion Sources (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3965589U JPH02131244U (en]) | 1989-04-05 | 1989-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3965589U JPH02131244U (en]) | 1989-04-05 | 1989-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02131244U true JPH02131244U (en]) | 1990-10-31 |
Family
ID=31548761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3965589U Pending JPH02131244U (en]) | 1989-04-05 | 1989-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02131244U (en]) |
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1989
- 1989-04-05 JP JP3965589U patent/JPH02131244U/ja active Pending