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经营范围
发明名称
Nouveau mode de constitution des coquilles et garnitures calorifuges pour tuyaux
摘要
申请公布号
FR698790(A)
申请公布日期
1931.02.05
申请号
FRD698790
申请日期
1930.07.09
申请人
LA NERVIENNE
发明人
分类号
F16L59/07;F16L59/14
主分类号
F16L59/07
代理机构
代理人
主权项
地址
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