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经营范围
发明名称
Hardness testing machine
摘要
申请公布号
US2053472(A)
申请公布日期
1936.09.08
申请号
US19350000667
申请日期
1935.01.07
申请人
JOSEPH GOGAN
发明人
GOGAN JOSEPH
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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