FR2188279A1 - - Google Patents
Info
- Publication number
- FR2188279A1 FR2188279A1 FR7321188A FR7321188A FR2188279A1 FR 2188279 A1 FR2188279 A1 FR 2188279A1 FR 7321188 A FR7321188 A FR 7321188A FR 7321188 A FR7321188 A FR 7321188A FR 2188279 A1 FR2188279 A1 FR 2188279A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2757472A GB1439747A (en) | 1972-06-13 | 1972-06-13 | Switchable multi-stage electrical attenuator devices |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2188279A1 true FR2188279A1 (fr) | 1974-01-18 |
FR2188279B1 FR2188279B1 (fr) | 1977-05-06 |
Family
ID=10261840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7321188A Expired FR2188279B1 (fr) | 1972-06-13 | 1973-06-12 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2329288A1 (fr) |
FR (1) | FR2188279B1 (fr) |
GB (1) | GB1439747A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330765A (en) * | 1980-02-26 | 1982-05-18 | Weinschel Engineering Co., Inc. | Switchable microwave step attenuator with compensation for linear operation over wide frequency range |
GB2172163B (en) * | 1985-03-07 | 1989-05-04 | Kenton Lab Limited | Attenuator apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2597090A (en) * | 1949-05-19 | 1952-05-20 | Daven Company | Variable attenuator |
-
1972
- 1972-06-13 GB GB2757472A patent/GB1439747A/en not_active Expired
-
1973
- 1973-06-08 DE DE19732329288 patent/DE2329288A1/de active Pending
- 1973-06-12 FR FR7321188A patent/FR2188279B1/fr not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2597090A (en) * | 1949-05-19 | 1952-05-20 | Daven Company | Variable attenuator |
Also Published As
Publication number | Publication date |
---|---|
FR2188279B1 (fr) | 1977-05-06 |
DE2329288A1 (de) | 1974-01-17 |
GB1439747A (en) | 1976-06-16 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |