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发明名称
TRISSONDA
摘要
申请公布号
IT8801516(D0)
申请公布日期
1988.09.12
申请号
IT19880001516
申请日期
1988.09.12
申请人
MALAVOLTA MARCO
发明人
MARCO MALAVOLTA
分类号
E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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