NL135895C - - Google Patents
Info
- Publication number
- NL135895C NL135895C NL135895DA NL135895C NL 135895 C NL135895 C NL 135895C NL 135895D A NL135895D A NL 135895DA NL 135895 C NL135895 C NL 135895C
- Authority
- NL
- Netherlands
Links
Classifications
- 
        - H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
- H01J25/49—Tubes using the parametric principle, e.g. for parametric amplification
 
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| GB5474/59A GB937863A (en) | 1959-02-17 | 1959-02-17 | Parametric amplifier | 
| GB547460A GB934149A (en) | 1959-02-17 | 1960-02-04 | Improvements in or relating to excavating and/or loading machines | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| NL135895C true NL135895C (en:Method) | 
Family
ID=26239912
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| NL248481D NL248481A (en:Method) | 1959-02-17 | ||
| NL135895D NL135895C (en:Method) | 1959-02-17 | 
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| NL248481D NL248481A (en:Method) | 1959-02-17 | 
Country Status (6)
| Country | Link | 
|---|---|
| AT (1) | AT216574B (en:Method) | 
| CH (1) | CH389038A (en:Method) | 
| DE (1) | DE1117780B (en:Method) | 
| FR (1) | FR1248808A (en:Method) | 
| GB (1) | GB937863A (en:Method) | 
| NL (2) | NL135895C (en:Method) | 
- 
        0
        - NL NL248481D patent/NL248481A/xx unknown
- NL NL135895D patent/NL135895C/xx active
 
- 
        1959
        - 1959-02-17 GB GB5474/59A patent/GB937863A/en not_active Expired
 
- 
        1960
        - 1960-02-13 CH CH161860A patent/CH389038A/de unknown
- 1960-02-15 DE DEN17888A patent/DE1117780B/de active Pending
- 1960-02-16 AT AT118260A patent/AT216574B/de active
- 1960-02-17 FR FR818737A patent/FR1248808A/fr not_active Expired
 
Also Published As
| Publication number | Publication date | 
|---|---|
| DE1117780B (de) | 1961-11-23 | 
| CH389038A (de) | 1965-03-15 | 
| FR1248808A (fr) | 1960-12-23 | 
| AT216574B (de) | 1961-08-10 | 
| GB937863A (en) | 1963-09-25 | 
| NL248481A (en:Method) |