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发明名称
摘要
申请公布号
FR2120619(A5)
申请公布日期
1972.08.18
申请号
FR19710017259
申请日期
1971.05.06
申请人
POLISTIL SNC AGRATI EUGE
发明人
分类号
G03B21/20;(IPC1-7):G03B21/00
主分类号
G03B21/20
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代理人
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