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发明名称
PIEZOELECTRIC VOICE RANGE TRANSDUCER
摘要
申请公布号
CA770776(A)
申请公布日期
1967.10.31
申请号
CAD770776
申请日期
申请人
GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRET ARY OF THE NAVY
发明人
CLAUDE C. SIMS
分类号
主分类号
代理机构
代理人
主权项
地址
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