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发明名称
IMPEDANCE BONDS
摘要
申请公布号
GB9309993(D0)
申请公布日期
1993.06.30
申请号
GB19930009993
申请日期
1993.05.14
申请人
WESTINGHOUSE BRAKE & SIGNAL HOLDINGS LIMITED
发明人
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
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