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发明名称
Tuning vibratory elements
摘要
申请公布号
US2948181(A)
申请公布日期
1960.08.09
申请号
US19570641751
申请日期
1957.02.21
申请人
BELL & GOSSETT COMPANY
发明人
BIRKEMEIER HENRY P.
分类号
G01H13/00
主分类号
G01H13/00
代理机构
代理人
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地址
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