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发明名称
Compound tool
摘要
申请公布号
US2305376(A)
申请公布日期
1942.12.15
申请号
US19410391901
申请日期
1941.05.05
申请人
SIDNEY BLUM
发明人
BLUM SIDNEY
分类号
G01B3/20
主分类号
G01B3/20
代理机构
代理人
主权项
地址
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