000 | 00288 a2200109 4500 | ||
---|---|---|---|
080 |
_a621.395 _bB 151 T |
||
245 | 1 |
_aTheorie van het electro-magnetische telefoonrelais _cby W.T. Bahler |
|
260 |
_aDelft _c1926 |
||
650 | _aTelephony Engineering | ||
100 | 1 |
_aBahler, W.T. _d |
|
901 | _a604 | ||
999 |
_c39993 _d39993 |