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发明名称
Rail support
摘要
申请公布号
US1781251(A)
申请公布日期
1930.11.11
申请号
US19290371206
申请日期
1929.06.15
申请人
SCHWENDT BERNARD J;STOLTZ CARL F
发明人
SCHWENDT BERNARD J.;STOLTZ CARL F.
分类号
E01B9/66
主分类号
E01B9/66
代理机构
代理人
主权项
地址
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