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经营范围
发明名称
METHOD OF MAINTAINING NEGATIVE PRESSURE
摘要
申请公布号
JPS63210799(A)
申请公布日期
1988.09.01
申请号
JP19870043159
申请日期
1987.02.27
申请人
TOYO NETSU KOGYO KK
发明人
OE TADAO
分类号
G21C13/00;G21F7/015
主分类号
G21C13/00
代理机构
代理人
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地址
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