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Ericsson?????1876?? ?????????????????1881 ??????,?????????????? 1900 ??1000???,4????50000????????1902 ?????,?????1905 ?????????1923 500???????????1946 ???????????1950 LM????????????????????????1977 ???????????(??)1988 ??,??????GSM?????1991 ?????11????105?,3400???????2000 ????
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