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发明名称
Dispositif de sécurité pour l'obturation automatique de canalisations endommagées
摘要
申请公布号
FR63005(E)
申请公布日期
1955.07.13
申请号
FRD63005
申请日期
1951.01.18
申请人
发明人
PETITDIDIER ROGER
分类号
B25D17/10;B60T11/32;B60T17/22;F16K17/30;F16K37/00;F16L55/10
主分类号
B25D17/10
代理机构
代理人
主权项
地址
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