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发明名称
RAIL FASTENER
摘要
申请公布号
US3436018(A)
申请公布日期
1969.04.01
申请号
USD3436018
申请日期
1967.12.04
申请人
HARSCO CORP.
发明人
REX L. ALEXANDER
分类号
E01B9/30;(IPC1-7):E01B9/00;E01B13/00;E01B21/04
主分类号
E01B9/30
代理机构
代理人
主权项
地址
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