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经营范围
发明名称
Dusting machine
摘要
申请公布号
US2157630(A)
申请公布日期
1939.05.09
申请号
US19350022269
申请日期
1935.05.18
申请人
ROOT RALPH R
发明人
ROOT RALPH R.
分类号
A01M9/00
主分类号
A01M9/00
代理机构
代理人
主权项
地址
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