名称: | |
描述: | |
公开/私有: | 公开 私有 |
Telephone switching technology survey / |
|
中图分类法
:
|
TN916.1 |
题名:
|
Telephone switching technology survey / |
出版发行:
|
Washington, D.C. : Dittberner Associates, Inc., , 1977. |
载体形态:
|
208 p. ; ; 25 cm. |
附注:
|
"Contract MDA903 77 C 0263" |
附注:
|
Cover title. |
主题词:
|
Telephone, Automatic. |
标签:
|
|
相关主题:
|
|
相关资源:
|
|
分享资源:
|
HEA| |00840nam 2200205 a 450 001| |021997014889 005| |20050613084305.0 008| |050609s1977 dcu 000 0 eng 040| |▼aWHUT▼cWHUT 093| |▼aTN916.1▼23 110|2 |▼aOffice of the assistant secr- | |etary of defense communication- | |s, command, control and intelligence. 245|10|▼aTelephone switching technolo- | |gy survey /▼cOffice of the ass- | |istant secretary of defense co- | |mmunications, command, control- | | and intelligence. 260| |▼aWashington, D.C. :▼bDittbern- | |er Associates, Inc.,▼c1977. 300| |▼a208 p. ;▼c25 cm. 500| |▼a"Contract MDA903 77 C 0263" 500| |▼aCover title. 650| 0|▼aTelephone, Automatic. 710|2 |▼aDittberner Associates, Inc. 950| |▼aJ▼fTN916.1/O32 999| |▼tA▼Atshs17▼a20050609 14:53:36- | |▼Mtshs11▼m20050613 08:43:05▼Gt- | |shs11▼g20050613 08:43:06