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发明名称
Perfectionnements aux détendeurs à membranes à double étage, pour gaz comprimés
摘要
申请公布号
FR991822(A)
申请公布日期
1951.10.10
申请号
FRD991822
申请日期
1949.05.19
申请人
L'AIR LIQUIDE
发明人
分类号
G05D16/06
主分类号
G05D16/06
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