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发明名称
Transducer assembly
摘要
申请公布号
US2990482(A)
申请公布日期
1961.06.27
申请号
US19570656372
申请日期
1957.05.01
申请人
ACOUSTICA ASSOCIATES, INC.
发明人
KENNY MORRIS
分类号
B06B1/06
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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