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发明名称
MULTIPLEX COMMUNICATIONS SYSTEM
摘要
申请公布号
CA518558(A)
申请公布日期
1955.11.15
申请号
CAD518558
申请日期
申请人
MULTIPLEX DEVELOPMENT CORPORATION
发明人
WILLIAM S. HALSTEAD
分类号
主分类号
代理机构
代理人
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地址
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