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经营范围
发明名称
GRAIN SIFTER AND SEPARATOR
摘要
申请公布号
US3455452(A)
申请公布日期
1969.07.15
申请号
USD3455452
申请日期
1967.10.19
申请人
JOSEPH H. WHALEN;JOAN WHALEN
发明人
HARRY G. YETTER
分类号
B07B1/24;(IPC1-7):B07B1/24
主分类号
B07B1/24
代理机构
代理人
主权项
地址
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