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发明名称
New piezo-electric ceramic material and process for making it
摘要
申请公布号
US2721182(A)
申请公布日期
1955.10.18
申请号
US19530381227
申请日期
1953.09.21
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
CLEMENT RENE
分类号
C04B35/468
主分类号
C04B35/468
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