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经营范围
发明名称
MICRO VACUUM DEVICE
摘要
申请公布号
JPH04137339(A)
申请公布日期
1992.05.12
申请号
JP19900257708
申请日期
1990.09.27
申请人
YOKOGAWA ELECTRIC CORP
发明人
MIURA AKIRA;OKA SADAJI;YAGIHARA TAKESHI;UCHIDA AKIRA
分类号
H01J19/32;H01J1/30;H01J1/312;H01J19/24;H01J21/06
主分类号
H01J19/32
代理机构
代理人
主权项
地址
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