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发明名称
CREEL
摘要
申请公布号
CA465755(A)
申请公布日期
1950.06.06
申请号
CAD465755
申请日期
申请人
CAMILLE DREYFUS
发明人
WILLIAM J. ELVIN;ELMER R. STAHL
分类号
主分类号
代理机构
代理人
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