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发明名称
Torsion pendulum damping apparatus
摘要
申请公布号
US2283453(A)
申请公布日期
1942.05.19
申请号
US19390299543
申请日期
1939.10.14
申请人
NORTON JOHN T
发明人
NORTON JOHN T.
分类号
G01N3/56
主分类号
G01N3/56
代理机构
代理人
主权项
地址
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