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经营范围
发明名称
Band compression system
摘要
申请公布号
US3030450(A)
申请公布日期
1962.04.17
申请号
US19580774173
申请日期
1958.11.17
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
SCHROEDER MANFRED R.
分类号
H04B1/66
主分类号
H04B1/66
代理机构
代理人
主权项
地址
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