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发明名称
DEVICE FOR CLEANING THE GRILLE OF HYDRAULIC INSTALLATIONS
摘要
申请公布号
CA544485(A)
申请公布日期
1957.08.06
申请号
CAD544485
申请日期
申请人
ATELIER DE CONSTRUCTION JONNERET S.A.
发明人
JEAN STURZENEGGER
分类号
主分类号
代理机构
代理人
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