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经营范围
发明名称
Machine pour essais de dureté
摘要
申请公布号
FR699850(A)
申请公布日期
1931.02.20
申请号
FRD699850
申请日期
1930.07.22
申请人
WILSON-MAEULEN COMPANY, INC.
发明人
分类号
G01N3/42
主分类号
G01N3/42
代理机构
代理人
主权项
地址
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