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发明名称
Système de ventilation pour cantres d'ourdissoirs ou autres installations
摘要
申请公布号
FR685167(A)
申请公布日期
1930.07.05
申请号
FRD685167
申请日期
1929.11.19
申请人
SOCIETE CHALONNAISE SCHLUMBERGER
发明人
分类号
D02H1/00
主分类号
D02H1/00
代理机构
代理人
主权项
地址
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