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经营范围
发明名称
Ship propeller
摘要
申请公布号
US2001896(A)
申请公布日期
1935.05.21
申请号
US19330686662
申请日期
1933.08.24
申请人
WARD CHARLES J
发明人
WARD CHARLES J.
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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