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经营范围
发明名称
Screw propeller
摘要
申请公布号
US2426742(A)
申请公布日期
1947.09.02
申请号
US19430511192
申请日期
1943.11.20
申请人
PAWLOWSKI FELIX W
发明人
PAWLOWSKI FELIX W.
分类号
B63H1/16
主分类号
B63H1/16
代理机构
代理人
主权项
地址
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