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发明名称
摘要
申请公布号
NL7100038(A)
申请公布日期
1972.07.06
申请号
NL19710000038
申请日期
1971.01.04
申请人
发明人
分类号
A01G9/14;E04H15/64;(IPC1-7):E04H1/12
主分类号
A01G9/14
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代理人
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