名称: | |
描述: | |
公开/私有: | 公开 私有 |
Signalling systems . |
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中图分类法
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TN911 |
题名:
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Signalling systems . |
出版发行:
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England : General Electrical Company, 19xx |
载体形态:
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v. (various pagings) : ill. ; 28 cm. |
丛编:
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GEc Measurements |
主题词:
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Telephone Signaling. |
标签:
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相关主题:
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分享资源:
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HEA| |00611nam 2200193 a 450 001| |021997014876 005| |20050610135713.0 008| |050609s19 enka b 000 0 eng 040| |▼aWHUT▼cWHUT 093| |▼aTN911▼23 110|2 |▼aGEC. 245|00|▼aSignalling systems . 260| |▼aEngland :▼bGeneral Electrica- | |l Company,▼c19xx 300| |▼a v. (various pagings) :▼bill- | |. ;▼c28 cm. 440| 0|▼aGEc Measurements 504| |▼aIncludes bibliographical references. 650| 0|▼aTelephone▼xSignaling. 950| |▼aJ▼fTN911/S578 999| |▼tA▼Atshs13▼a20050609 14:11:20- | |▼Mtshs11▼m20050610 13:57:13▼Gt- | |shs11▼g20050610 13:57:13