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发明名称
MODULATION SYSTEM
摘要
申请公布号
CA481934(A)
申请公布日期
1952.03.25
申请号
CAD481934
申请日期
申请人
AVCO MANUFACTURING CORPORATION
发明人
RONALD J. ROCKWELL
分类号
主分类号
代理机构
代理人
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地址
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