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经营范围
发明名称
Contracted horns with least mouth reflection and some wall leakage
摘要
申请公布号
US3174578(A)
申请公布日期
1965.03.23
申请号
US19620226689
申请日期
1962.09.27
申请人
SEIICHI KOJIMA
发明人
KOJIMA SEIICHI
分类号
G10K11/02;G10K11/28
主分类号
G10K11/02
代理机构
代理人
主权项
地址
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