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经营范围
发明名称
Subway, tramway construction
摘要
申请公布号
US2013703(A)
申请公布日期
1935.09.10
申请号
US19310555640
申请日期
1931.08.06
申请人
STRAUSS JOSEPH B
发明人
STRAUSS JOSEPH B.
分类号
B61B13/10
主分类号
B61B13/10
代理机构
代理人
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