| Signature mark | NL 053/0240 |
|---|---|
| Subject | Bericht (1) |
| Author |
Bureau of Standards (USA)
|
| Title | Distance Ranges of Radio Waves (Letter Circular 317) |
| Duration | 25.01.1932 |
| Scope | 5 Bl. hektogr.; 2 Blaupausen |
| Subject area | Nachrichtentechnik <410> |
| Formal information | Languages: Englisch |
| Rights notice | CC BY-SA 4.0 |
