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发明名称
Coupler connection
摘要
申请公布号
US1747483(A)
申请公布日期
1930.02.18
申请号
US19280277269
申请日期
1928.05.12
申请人
W. H. MINER, INC.
发明人
O'CONNOR JOHN F.
分类号
B61G9/24
主分类号
B61G9/24
代理机构
代理人
主权项
地址
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