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经营范围
发明名称
Production d'ondes sonores par interférence d'ondes ultrasonores
摘要
申请公布号
FR1047488(A)
申请公布日期
1953.12.15
申请号
FRD1047488
申请日期
1952.01.03
申请人
发明人
MEYER BERNARD-EMILE
分类号
G01S1/02;G08B3/10;G10K15/02
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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