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经营范围
发明名称
MECHANICAL FILTER
摘要
申请公布号
US3504309(A)
申请公布日期
1970.03.31
申请号
USD3504309
申请日期
1967.04.18
申请人
OKI DENKI KOGYO KK.
发明人
SHOJI OKAWA;KEIICHI YOSHIZAKI
分类号
H03H9/50;(IPC1-7):H03H9/26
主分类号
H03H9/50
代理机构
代理人
主权项
地址
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