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发明名称
VACUUM
摘要
申请公布号
JPH0417822(A)
申请公布日期
1992.01.22
申请号
JP19900121339
申请日期
1990.05.14
申请人
HITACHI LTD
发明人
SUNAKAWA MASARO;TAKAGI MASAYUKI;TAKAHAGI FUMIO
分类号
A47L9/00;A47L9/28
主分类号
A47L9/00
代理机构
代理人
主权项
地址
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