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发明名称
Perfectionnements à la génération et à la réception d'impulsions ultra-sonores
摘要
申请公布号
FR1034171(A)
申请公布日期
1953.07.20
申请号
FRD1034171
申请日期
1951.03.20
申请人
SOCIETE D'ETUDES ET DE CONSTRUCTIONS MECANIQUES ET HORLOGERES A D S
发明人
分类号
G01N29/24
主分类号
G01N29/24
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