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发明名称
Instrument for graphic control
摘要
申请公布号
US1889006(A)
申请公布日期
1932.11.29
申请号
US19310561617
申请日期
1931.09.08
申请人
EUGENE SZEPESI
发明人
SZEPESI EUGENE
分类号
G01B3/04
主分类号
G01B3/04
代理机构
代理人
主权项
地址
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