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发明名称
摘要
申请公布号
JPS486278(Y1)
申请公布日期
1973.02.17
申请号
JP19690038750U
申请日期
1969.04.30
申请人
发明人
分类号
E04G1/24;B66C5/02;B66C19/00;E04G1/20;(IPC1-7):B66C19/00
主分类号
E04G1/24
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