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发明名称
Micrometer construction
摘要
申请公布号
US1817516(A)
申请公布日期
1931.08.04
申请号
US19270158756
申请日期
1927.01.03
申请人
KARLSSON OSCAR V
发明人
KARLSSON OSCAR V.
分类号
G01B3/18
主分类号
G01B3/18
代理机构
代理人
主权项
地址
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