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发明名称
OBSTRUCTION MECHANISM AND PERFECT DEANING OF THE INTERNAL OF DRAINAGE PIPING
摘要
申请公布号
GR64696(B)
申请公布日期
1980.05.14
申请号
GR19808001613
申请日期
1980.03.07
申请人
SPIRIDON PROVELEGIOS
发明人
SPIRIDON PROVELEGIOS
分类号
主分类号
代理机构
代理人
主权项
地址
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