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发明名称
摘要
申请公布号
US4016395(B1)
申请公布日期
1982.08.03
申请号
US19740532200
申请日期
1974.12.12
申请人
发明人
分类号
B23H7/02;B23H7/10
主分类号
B23H7/02
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