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发明名称
SURFACE ROUGHNESS MEASURING DEVICE
摘要
申请公布号
PL154674(B1)
申请公布日期
1991.09.30
申请号
PL19870266412
申请日期
1987.06.24
申请人
发明人
分类号
G01B;G01B7/34;(IPC1-7):G01B7/34
主分类号
G01B
代理机构
代理人
主权项
地址
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