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发明名称
摘要
申请公布号
JPS428271(Y1)
申请公布日期
1967.04.27
申请号
JP19640031411U
申请日期
1964.04.23
申请人
发明人
分类号
B66D3/20;B66D3/18;(IPC1-7):B66D3/18
主分类号
B66D3/20
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代理人
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