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发明名称
AGGLOMERATED BONDSTONE IN CEMENT
摘要
申请公布号
CA480594(A)
申请公布日期
1952.01.29
申请号
CAD480594
申请日期
申请人
JEAN WILFRID LANGLOIS
发明人
JEAN WILFRID LANGLOIS
分类号
主分类号
代理机构
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