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经营范围
发明名称
Electric railroad system
摘要
申请公布号
US1862736(A)
申请公布日期
1932.06.14
申请号
US19280283268
申请日期
1928.06.06
申请人
RICHARD CRETER
发明人
CRETER RICHARD
分类号
B61L3/18
主分类号
B61L3/18
代理机构
代理人
主权项
地址
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