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发明名称
Driving device for a hardness measuring instrument
摘要
申请公布号
US4899578(A)
申请公布日期
1990.02.13
申请号
US19880162866
申请日期
1988.03.02
申请人
ERNST, ALFRED
发明人
ERNST, ALFRED
分类号
F16H25/20;G01N3/00;G01N3/42
主分类号
F16H25/20
代理机构
代理人
主权项
地址
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