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发明名称
Wallpaper perforator
摘要
申请公布号
US2435349(A)
申请公布日期
1948.02.03
申请号
US19450610154
申请日期
1945.08.10
申请人
HALL EULIS T
发明人
HALL EULIS T.
分类号
B44C7/02
主分类号
B44C7/02
代理机构
代理人
主权项
地址
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