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发明名称
Telescoping measuring rule
摘要
申请公布号
US2270355(A)
申请公布日期
1942.01.20
申请号
US19410401887
申请日期
1941.07.11
申请人
SWANSON CARL G
发明人
SWANSON CARL G.
分类号
G01B3/08
主分类号
G01B3/08
代理机构
代理人
主权项
地址
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