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发明名称
CONTROL DEVICE TO DELAY OPERATION FOR NEGATIVE PRESSURE OPERATING APPARATUS
摘要
申请公布号
KR1019800000518(B1)
申请公布日期
1980.06.12
申请号
KR1019750002486
申请日期
1975.11.14
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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