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发明名称
Added mass type circular tuning fork
摘要
申请公布号
US3322016(A)
申请公布日期
1967.05.30
申请号
US19640374774
申请日期
1964.06.12
申请人
JECO COMPANY, LIMITED
发明人
ISHIKAWA KAZUO;HIROSE MASAKAZU;IWAKI KOICHI;FUJITA HARUHIRO
分类号
G04C3/10;G10G7/02
主分类号
G04C3/10
代理机构
代理人
主权项
地址
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