FR2197247B1 - - Google Patents
Info
- Publication number
- FR2197247B1 FR2197247B1 FR7325655A FR7325655A FR2197247B1 FR 2197247 B1 FR2197247 B1 FR 2197247B1 FR 7325655 A FR7325655 A FR 7325655A FR 7325655 A FR7325655 A FR 7325655A FR 2197247 B1 FR2197247 B1 FR 2197247B1
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/23—Combinations of reflecting surfaces with refracting or diffracting devices
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47070463A JPS5237906B2 (da) | 1972-07-13 | 1972-07-13 | |
| JP7046472A JPS4928099A (da) | 1972-07-13 | 1972-07-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2197247A1 FR2197247A1 (da) | 1974-03-22 |
| FR2197247B1 true FR2197247B1 (da) | 1978-07-21 |
Family
ID=26411617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7325655A Expired FR2197247B1 (da) | 1972-07-13 | 1973-07-12 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2197247B1 (da) |
| GB (1) | GB1442428A (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2194391B (en) * | 1986-06-23 | 1991-02-27 | Secr Defence | A passive radar target |
| CN112407196B (zh) * | 2020-12-04 | 2022-05-31 | 广东福顺天际通信有限公司 | 一种救生圈 |
| CN112498631A (zh) * | 2020-12-04 | 2021-03-16 | 广东福顺天际通信有限公司 | 一种反射透镜结构救生圈 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2921305A (en) * | 1955-10-28 | 1960-01-12 | Lab For Electronics Inc | Microwave reflector |
| US2866971A (en) * | 1956-09-05 | 1958-12-30 | Kenneth S Kelleher | Radiant energy reflector |
-
1973
- 1973-07-12 FR FR7325655A patent/FR2197247B1/fr not_active Expired
- 1973-07-13 GB GB3348173A patent/GB1442428A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1442428A (en) | 1976-07-14 |
| FR2197247A1 (da) | 1974-03-22 |