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发明名称
RIDDLES OR SIEVES
摘要
申请公布号
CA519311(A)
申请公布日期
1955.12.13
申请号
CAD519311
申请日期
申请人
HERALD B. GREENING;JAMES W. GALLOWAY
发明人
HERALD B. GREENING;JAMES W. GALLOWAY
分类号
主分类号
代理机构
代理人
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