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发明名称
Selective dispenser of powdered materials
摘要
申请公布号
US2552349(A)
申请公布日期
1951.05.08
申请号
US19480024703
申请日期
1948.05.03
申请人
FRANK SIEWENIE PHILIP
发明人
SIEWENIE PHILIP FRANK
分类号
A47K5/10
主分类号
A47K5/10
代理机构
代理人
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