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发明名称
One-piece rat guard
摘要
申请公布号
US1744834(A)
申请公布日期
1930.01.28
申请号
US19250050939
申请日期
1925.08.18
申请人
MAYNARD FREDERICK E
发明人
MAYNARD FREDERICK E.
分类号
B63B21/12
主分类号
B63B21/12
代理机构
代理人
主权项
地址
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