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发明名称
Grommet
摘要
申请公布号
US2346854(A)
申请公布日期
1944.04.18
申请号
US19420433932
申请日期
1942.03.09
申请人
MCGEE FRANCIS E
发明人
MCGEE FRANCIS E.
分类号
F42B39/00
主分类号
F42B39/00
代理机构
代理人
主权项
地址
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