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发明名称
Ship-steering device
摘要
申请公布号
US1783752(A)
申请公布日期
1930.12.02
申请号
US19280296261
申请日期
1928.07.30
申请人
SELZER CLARENCE F
发明人
SELZER CLARENCE F.
分类号
B63H25/44
主分类号
B63H25/44
代理机构
代理人
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地址
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