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经营范围
发明名称
Improvements in or relating to apparatus for indicating resonance of mechanical vibrations
摘要
申请公布号
GB664077(A)
申请公布日期
1952.01.02
申请号
GB19490010011
申请日期
1949.04.13
申请人
SPERRY PRODUCTS, INC.
发明人
分类号
G01N29/06
主分类号
G01N29/06
代理机构
代理人
主权项
地址
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