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经营范围
发明名称
Perfectionnements apportés à la construction des parois, viroles ou coffrages pour tunnels, galeries de mines, réservoirs, silos, puits et analogues
摘要
申请公布号
FR916208(A)
申请公布日期
1946.11.29
申请号
FRD916208
申请日期
1945.03.01
申请人
发明人
COUELLE JACQUES
分类号
E21D11/10;E21D11/15;E21D11/18
主分类号
E21D11/10
代理机构
代理人
主权项
地址
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