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发明名称
METHOD AND APPARATUS FOR SIFTING
摘要
申请公布号
CA672974(A)
申请公布日期
1963.10.29
申请号
CAD672974
申请日期
申请人
CHARLES W. WARD
发明人
CHARLES W. WARD
分类号
主分类号
代理机构
代理人
主权项
地址
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