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发明名称
RAILWAY RIGGING RETAINING MEANS
摘要
申请公布号
CA386982(A)
申请公布日期
1940.02.20
申请号
CAD386982
申请日期
申请人
W. H. MINER
发明人
WILLIAM A. HEITNER
分类号
主分类号
代理机构
代理人
主权项
地址
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