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经营范围
发明名称
Resonance inspection method
摘要
申请公布号
US2439131(A)
申请公布日期
1948.04.06
申请号
US19430511090
申请日期
1943.11.20
申请人
UNITED AIRCRAFT CORPORATION
发明人
FIRESTONE FLOYD A.
分类号
G01H13/00;G01N29/12
主分类号
G01H13/00
代理机构
代理人
主权项
地址
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