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经营范围
发明名称
INHERENT FREQUENCY METER
摘要
申请公布号
JPH01148923(A)
申请公布日期
1989.06.12
申请号
JP19870307544
申请日期
1987.12.07
申请人
HITACHI LTD
发明人
SEGAWA YORIHIDE;ARAI TORU;ISHIBASHI YOJI
分类号
G01H11/00;G01H13/00
主分类号
G01H11/00
代理机构
代理人
主权项
地址
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