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发明名称
Joint d'étanchéité pour raccord sans soudure de tuyaux
摘要
申请公布号
FR44780(E)
申请公布日期
1935.04.06
申请号
FRD44780
申请日期
1934.05.03
申请人
发明人
KREIDEL HANS
分类号
F16L19/10
主分类号
F16L19/10
代理机构
代理人
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