NL6412223A - - Google Patents
Info
- Publication number
- NL6412223A NL6412223A NL6412223A NL6412223A NL6412223A NL 6412223 A NL6412223 A NL 6412223A NL 6412223 A NL6412223 A NL 6412223A NL 6412223 A NL6412223 A NL 6412223A NL 6412223 A NL6412223 A NL 6412223A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
- H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
- B41J2/39—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads
- B41J2/395—Structure of multi-stylus heads
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5559/59A GB890843A (en) | 1959-02-18 | 1959-02-18 | Electron tube magnetic focussing device |
| GB4144663A GB982827A (en) | 1959-02-18 | 1963-10-21 | Permanent magnet periodic focusing structures for travelling wave tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6412223A true NL6412223A (de) | 1965-04-22 |
Family
ID=37575228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6412223A NL6412223A (de) | 1959-02-18 | 1964-10-21 |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB890843A (de) |
| NL (1) | NL6412223A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8424268D0 (en) * | 1984-09-26 | 1984-10-31 | Wymbs Eng Ltd | Valve arrangement |
-
1959
- 1959-02-18 GB GB5559/59A patent/GB890843A/en not_active Expired
-
1963
- 1963-10-21 GB GB4144663A patent/GB982827A/en not_active Expired
-
1964
- 1964-10-21 NL NL6412223A patent/NL6412223A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB982827A (en) | 1965-02-10 |
| GB890843A (en) | 1962-03-07 |