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发明名称
摘要
申请公布号
GB1258850(A)
申请公布日期
1971.12.30
申请号
GBD1258850
申请日期
1970.09.18
申请人
发明人
分类号
D04B15/74;D04B15/78;D04B15/82
主分类号
D04B15/74
代理机构
代理人
主权项
地址
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