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发明名称
Perfectionnements aux hélices marines à pas variable
摘要
申请公布号
FR976394(A)
申请公布日期
1951.03.16
申请号
FRD976394
申请日期
1948.12.10
申请人
J. STONE & COMPANY LIMITED
发明人
分类号
B63H3/04
主分类号
B63H3/04
代理机构
代理人
主权项
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