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发明名称
摘要
申请公布号
JPS4973511(U)
申请公布日期
1974.06.26
申请号
JP19720118275U
申请日期
1972.10.12
申请人
发明人
分类号
B42F13/30;B42F13/12;(IPC1-7):B42F13/12
主分类号
B42F13/30
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