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发明名称
Apparatus for measuring the hardness of materials
摘要
申请公布号
US1770046(A)
申请公布日期
1930.07.08
申请号
US19250020599
申请日期
1925.04.04
申请人
THE SHORE INSTRUMENT & MFG. CO.
发明人
SHORE ALBERT F.
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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