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发明名称
Steel tape measure
摘要
申请公布号
US2230668(A)
申请公布日期
1941.02.04
申请号
US19380235764
申请日期
1938.10.19
申请人
AUGUST OHRTMANN
发明人
OHRTMANN AUGUST
分类号
G01B3/10
主分类号
G01B3/10
代理机构
代理人
主权项
地址
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