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发明名称
Controllable reversible pitch propeller system
摘要
申请公布号
US2696270(A)
申请公布日期
1954.12.07
申请号
US19480003025
申请日期
1948.01.19
申请人
NICHOLS HARRY J
发明人
NICHOLS HARRY J.
分类号
B63H3/02
主分类号
B63H3/02
代理机构
代理人
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地址
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