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发明名称
Appareil d'essai de dureté
摘要
申请公布号
FR817317(A)
申请公布日期
1937.09.01
申请号
FRD817317
申请日期
1937.02.03
申请人
HESSENMU:LLER & WOLPERT
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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