BE470236A - - Google Patents
Info
- Publication number
- BE470236A BE470236A BE470236DA BE470236A BE 470236 A BE470236 A BE 470236A BE 470236D A BE470236D A BE 470236DA BE 470236 A BE470236 A BE 470236A
- Authority
- BE
- Belgium
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
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
 
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US270408XA | 1946-01-22 | 1946-01-22 | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| BE470236A true BE470236A (forum.php) | 
Family
ID=21835343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| BE470236D BE470236A (forum.php) | 1946-01-22 | 
Country Status (5)
| Country | Link | 
|---|---|
| BE (1) | BE470236A (forum.php) | 
| CH (1) | CH270408A (forum.php) | 
| DE (1) | DE844319C (forum.php) | 
| FR (1) | FR941005A (forum.php) | 
| GB (1) | GB655936A (forum.php) | 
- 
        0
        - BE BE470236D patent/BE470236A/xx unknown
 
- 
        1947
        - 1947-01-02 GB GB160/47A patent/GB655936A/en not_active Expired
- 1947-01-09 FR FR941005D patent/FR941005A/fr not_active Expired
- 1947-01-22 CH CH270408D patent/CH270408A/fr unknown
 
- 
        1948
        - 1948-12-31 DE DEP28869A patent/DE844319C/de not_active Expired
 
Also Published As
| Publication number | Publication date | 
|---|---|
| GB655936A (en) | 1951-08-08 | 
| CH270408A (fr) | 1950-08-31 | 
| FR941005A (fr) | 1948-12-30 | 
| DE844319C (de) | 1952-07-21 |