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发明名称
Draft connection
摘要
申请公布号
US1841619(A)
申请公布日期
1932.01.19
申请号
US19290364130
申请日期
1929.05.18
申请人
FRED MAINES
发明人
MAINES FRED
分类号
B62D13/00
主分类号
B62D13/00
代理机构
代理人
主权项
地址
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