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经营范围
发明名称
Improvements in or relating to hardness testing instruments
摘要
申请公布号
GB760828(A)
申请公布日期
1956.11.07
申请号
GB19540003087
申请日期
1954.02.02
申请人
JOAN OLIVE DEAKIN
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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