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经营范围
发明名称
RAILROAD SPIKE RETAINER
摘要
申请公布号
GB1518452(A)
申请公布日期
1978.07.19
申请号
GB19760004162
申请日期
1976.02.03
申请人
ARTHUR D
发明人
分类号
E01B9/16;F16B13/02;F16B13/12;(IPC1-7):E01B9/12
主分类号
E01B9/16
代理机构
代理人
主权项
地址
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