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发明名称
Railway draft rigging
摘要
申请公布号
US1861629(A)
申请公布日期
1932.06.07
申请号
US19280269957
申请日期
1928.04.14
申请人
W. H. MINER, INC.
发明人
HASELTINE STACY B.
分类号
B61G9/04
主分类号
B61G9/04
代理机构
代理人
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