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发明名称
Obturateur perfectionné, en particulier pour contrôler le débit d'une trémie
摘要
申请公布号
FR1545723(A)
申请公布日期
1968.11.15
申请号
FR19670119406
申请日期
1967.08.30
申请人
ATLAS COPCO AKTIEBOLAG
发明人
分类号
B24C7/00;F16K11/08;F16K43/00
主分类号
B24C7/00
代理机构
代理人
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