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经营范围
发明名称
EARTH SOLIDIFYING PROCESS
摘要
申请公布号
CA351079(A)
申请公布日期
1935.06.18
申请号
CAD351079
申请日期
申请人
THE SHELL DEVELOPMENT COMPANY
发明人
JAN VAN HULST
分类号
主分类号
代理机构
代理人
主权项
地址
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