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经营范围
发明名称
Nouveau procédé de construction de routes par calcination du terrain
摘要
申请公布号
FR780060(A)
申请公布日期
1935.04.18
申请号
FRD780060
申请日期
1934.10.19
申请人
发明人
SCHWARZ ALEXIS DE
分类号
E01C21/02
主分类号
E01C21/02
代理机构
代理人
主权项
地址
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