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经营范围
发明名称
Improvements in machines for subjecting materials to tensile, compression, bending and hardness tests
摘要
申请公布号
GB522219(A)
申请公布日期
1940.06.12
申请号
GB19380035859
申请日期
1938.12.08
申请人
JOHANN WILHELM HEINRICH ARNTZEN
发明人
分类号
G01N3/42
主分类号
G01N3/42
代理机构
代理人
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地址
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