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经营范围
发明名称
Vacuum roller attachment
摘要
申请公布号
US3147509(A)
申请公布日期
1964.09.08
申请号
US19630255758
申请日期
1963.02.04
申请人
SIEB ROBERT G
发明人
SIEB ROBERT G.
分类号
A47L9/02
主分类号
A47L9/02
代理机构
代理人
主权项
地址
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