| 000 | 00415pam a2200145a 44500 | ||
|---|---|---|---|
| 082 |
_aBTS _bMONO B-1299 |
||
| 100 | _aMarshall,R N | ||
| 245 | 1 | _aNEW MICROPHONE PROVIDING UNIFORM DIRECTIVITY OVER EXTENDED FREQUENCY RANGE | |
| 260 |
_a _b _c1940 |
||
| 300 | _a43 | ||
| 500 | _aBound With Bts Mono B-1261-1298.Lack No1264,1270,1274,1286,1291,1293 | ||
| 700 | _aHarry,W R | ||
| 964 | _gCIRC | ||
| 997 | _aTR17236 C | ||
| 999 |
_c401872 _d401872 |
||