-凯发平台

hea|  |01058nam0 2200301   45  
000|  |143728
001|  |97002701
005|  |970817082617.0
011|  |▼a0032-2334
092|  |▼acn▼b734c0058
100|  |▼a19800523b19701974k  y eng         ba
101|0 |▼aeng
110|  |▼aaiy    0y u
200|10|▼apoint-to-point communication-
   |  |▼fmarconi communication system-
   |  |s limited.，marconi`s wireless -
   |  |telegraph company
207| 0|▼av.14-18, no.11; jan. 1970-jan. 1974.
210|  |▼achelmsford, eng.▼cmarconi co-
   |  |mmunication systems limited.
215|  |▼a4 v.▼cill.▼d25 cm.
300|  |▼ainternational aerospace abstracts
430| 0|▼120010▼apoint-to-point teleco-
   |  |mmunications
440| 0|▼120010▼asound and vision broadcasting
440| 0|▼120010▼acommunication systems
440| 0|▼120010▼acommunication & broadcasting
530|0 |▼apoint-to-point communication
531|  |▼apoint-point commun.
606|  |▼atelecommunication▼xperiodicals.
711|0 |▼amarconi communication systems limited.
711|0 |▼amarconi`s wireless telegraph company.
905|  |▼a801▼d/▼e▼f1