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发明名称
PROTECTIVE SYSTEMS
摘要
申请公布号
CA518121(A)
申请公布日期
1955.11.01
申请号
CAD518121
申请日期
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
WILLARD A. DERR;EDWARD J. CHAM
分类号
主分类号
代理机构
代理人
主权项
地址
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