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发明名称
Apparatus for testing the mechanical oscillation properties of bodies
摘要
申请公布号
US2178252(A)
申请公布日期
1939.10.31
申请号
US19370143721
申请日期
1937.05.20
申请人
SIEMENS & HALSKE, AKTIENGESELLSCHAFT SIEMENSSTADT
发明人
FORSTER FRITZ
分类号
G01N3/38
主分类号
G01N3/38
代理机构
代理人
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地址
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