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发明名称
Tie plate
摘要
申请公布号
US1807062(A)
申请公布日期
1931.05.26
申请号
US19300465206
申请日期
1930.07.01
申请人
FRAWLEY RAYMOND W;BRUNER GEORGE C
发明人
FRAWLEY RAYMOND W.;BRUNER GEORGE C.
分类号
E01B9/36
主分类号
E01B9/36
代理机构
代理人
主权项
地址
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