| 000 | 00534naa a22001937c 4500 | ||
|---|---|---|---|
| 001 | 4489 | ||
| 003 | OSt | ||
| 005 | 20190814160846.0 | ||
| 007 | t| | ||
| 008 | 190702s xxu||||| |||| 00| 0 d | ||
| 100 | 1 | _aSpear, Brian | |
| 245 | 0 | 0 | _aSubmarine telegraph cables, patents and electromagnetic field theory |
| 650 |
_aTechnikgeschichte _94361 |
||
| 650 |
_aFernmeldewesen _91297 |
||
| 650 |
_aSeekabel _94626 |
||
| 650 |
_aElektromagnetisches Feld _9994 |
||
| 650 |
_aPatentsammlung _93514 |
||
| 773 | 0 |
_aWPI 25(2003),3,203-209 _wz_WPI |
|
| 999 |
_c2490 _d2490 |
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