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| 999 |
_c71469 _d71469 |
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| 003 | CITU | ||
| 005 | 20210729112551.0 | ||
| 008 | 210729b ||||| |||| 00| 0 eng d | ||
| 020 | _a0932764029 | ||
| 040 |
_aCITU LRAC _beng |
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| 082 | _a621.381537 | ||
| 245 | 1 | 0 |
_aA history of engineering and science in the bell system : switching technology (1925-1975) / _cPrepared by A. E. Joel Jr. and other Members of the Technical Staff ; G.E. Schindler, Jr. ,Editor. |
| 264 | 1 |
_aWashington D. C.: _bBell Telephone Laboratories, Inc., _cc1982. |
|
| 300 |
_axiv, 639 pages : _billustrations; _c(for editing in ONSITE DUTY) |
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| 336 |
_atext _btxt _2rdacontent |
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| 337 |
_2unmediated _an _brdamedia |
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| 338 |
_2volume _anc _brdacarrier |
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| 500 | _aIncludes index. | ||
| 650 | 0 |
_aEngineering _xHistory. |
|
| 650 | 0 | _aElectronic circuits. | |
| 650 | 0 | _aScience history. | |
| 942 |
_2ddc _cBK |
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