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发明名称
摘要
申请公布号
SE331604(B)
申请公布日期
1971.01.04
申请号
SE19630014247
申请日期
1963.12.19
申请人
SONIC DEV CORP OF AMERICA
发明人
HUGHES N
分类号
G10K5/00;G10K5/02;(IPC1-7):B06B1/20
主分类号
G10K5/00
代理机构
代理人
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