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发明名称
MARINE DOUBLE-REVERSE PROPELLER DEVICE WITH FREE ROTATING PROPELLER
摘要
申请公布号
JPH03287488(A)
申请公布日期
1991.12.18
申请号
JP19900090023
申请日期
1990.04.04
申请人
MITSUBISHI HEAVY IND LTD
发明人
HOSHINO TETSUJI
分类号
B63H1/28;B63H5/10
主分类号
B63H1/28
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代理人
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