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发明名称
Screw propellers
摘要
申请公布号
US3078925(A)
申请公布日期
1963.02.26
申请号
US19620201409
申请日期
1962.06.11
申请人
ENGSTRAND GUNNAR C
发明人
ENGSTRAND GUNNAR C.
分类号
B63H1/12
主分类号
B63H1/12
代理机构
代理人
主权项
地址
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