| 000 | 00380nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1969 xx 000 0 und d | ||
| 082 | _a621.382 L44I | ||
| 100 | _aLEHNERT, Josef | ||
| 245 | 0 | _aIntroduction to telegraph engineering | |
| 260 |
_bBerlin _c1969 |
||
| 300 | _a155p | ||
| 650 | _aTELEGRAPH | ||
| 653 | _aTELECUMMNICATION | ||
| 653 | _aTELEGRAPH | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c56366 _d56366 |
||