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发明名称
PLASTIC CLAY COLUMN SCARIFYING APPARATUS
摘要
申请公布号
CA405476(A)
申请公布日期
1942.06.16
申请号
CAD405476
申请日期
申请人
THE COOKSVILLE COMPANY LIMITED
发明人
HENRY D. HOLLAND
分类号
主分类号
代理机构
代理人
主权项
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