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发明名称
Procédé et machine pour la fabrication en continu des tuyaux en amiante-ciment
摘要
申请公布号
FR1141729(A)
申请公布日期
1957.09.06
申请号
FRD1141729
申请日期
1956.02.21
申请人
ETERNIT
发明人
分类号
B28B21/48
主分类号
B28B21/48
代理机构
代理人
主权项
地址
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