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经营范围
发明名称
Flaw detector unit
摘要
申请公布号
US1960968(A)
申请公布日期
1934.05.29
申请号
US19310542531
申请日期
1931.06.06
申请人
SPERRY PRODUCTS, INC.
发明人
DRAKE HARCOURT C.
分类号
B61K9/10;G01N27/83
主分类号
B61K9/10
代理机构
代理人
主权项
地址
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