| 000 | 00371pam a2200145a 44500 | ||
|---|---|---|---|
| 082 |
_aBTS _bMONO 2177 |
||
| 100 | _aTownsend,M A | ||
| 245 | 1 | _aCOLD CATHODE TUBES FOR TRANSMISSION OF AUDIO FREQUENCY SIGNALS | |
| 260 |
_a _b _c1953 |
||
| 300 | _a21 | ||
| 500 | _aBound With Bts Mono 2153-2176,2178-2179 | ||
| 700 | _aDepp,W A | ||
| 964 | _gCIRC | ||
| 997 | _aTR19934 C | ||
| 999 |
_c403522 _d403522 |
||