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发明名称
Rail-retaining device
摘要
申请公布号
US2099786(A)
申请公布日期
1937.11.23
申请号
US19360103744
申请日期
1936.10.02
申请人
WOODINGS-VERONA TOOL WORKS
发明人
WOODINGS ROBERT T.
分类号
E01B9/46
主分类号
E01B9/46
代理机构
代理人
主权项
地址
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