| 000 | 00340nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 160710s1930 xx 000 0 und d | ||
| 082 | _a621.385 UNI | ||
| 100 | _aAMERICAN TELEPHONES | ||
| 245 | _aPRINCIPLES OF ELECTRICITY APPLIED TO TELEPHONE AND TELEGRAPHY WORK | ||
| 260 |
_bAMERICAN TELEPHONES _c1930 |
||
| 300 | _a264 | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c37923 _d37923 |
||