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经营范围
发明名称
Electrotechnique
摘要
申请公布号
US2145866(A)
申请公布日期
1939.02.07
申请号
US19290385912
申请日期
1929.08.14
申请人
FAILLA GIOACCHINO
发明人
FAILLA GI?
分类号
G01T1/185;H01J47/02
主分类号
G01T1/185
代理机构
代理人
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地址
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