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发明名称
Procédé et machine pour la fabrication continue par enroulement de tuyaux en fibrociment
摘要
申请公布号
FR977925(A)
申请公布日期
1951.04.06
申请号
FRD977925
申请日期
1948.12.21
申请人
发明人
COVA FEDELE
分类号
B28B21/48
主分类号
B28B21/48
代理机构
代理人
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