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发明名称
Clapet de fermeture s'ouvrant et se fermant automatiquement
摘要
申请公布号
FR721200(A)
申请公布日期
1932.02.29
申请号
FRD721200
申请日期
1931.08.10
申请人
ZIMMERMANN & JANSEN GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
分类号
F16K15/03
主分类号
F16K15/03
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