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发明名称
Tender structure
摘要
申请公布号
US1920755(A)
申请公布日期
1933.08.01
申请号
US19290414150
申请日期
1929.12.14
申请人
GENERAL STEEL CASTINGS CORPORATION
发明人
LENTZ WILLIAM L.;SHEEHAN WILLIAM M.
分类号
B61C17/02
主分类号
B61C17/02
代理机构
代理人
主权项
地址
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