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发明名称
Rowing device
摘要
申请公布号
US2528304(A)
申请公布日期
1950.10.31
申请号
US19460687308
申请日期
1946.07.31
申请人
GRANGER ALBERT N
发明人
GRANGER ALBERT N.
分类号
B63H16/10
主分类号
B63H16/10
代理机构
代理人
主权项
地址
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