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发明名称
Contact de rail
摘要
申请公布号
FR792224(A)
申请公布日期
1935.12.26
申请号
FRD792224
申请日期
1935.05.24
申请人
发明人
ROSENFELD MARTIN;MIHALY DENES VON
分类号
B61L1/02
主分类号
B61L1/02
代理机构
代理人
主权项
地址
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