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发明名称
Powder dispenser
摘要
申请公布号
US1813835(A)
申请公布日期
1931.07.07
申请号
US19290386269
申请日期
1929.08.16
申请人
BATES DON M;COBURN HARRY W
发明人
BATES DON M.;COBURN HARRY W.
分类号
A47G19/34
主分类号
A47G19/34
代理机构
代理人
主权项
地址
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