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发明名称
Band-pass filter
摘要
申请公布号
US1897633(A)
申请公布日期
1933.02.14
申请号
US19290408304
申请日期
1929.11.19
申请人
RADIO PATENTS CORPORATION
发明人
DALPAYRAT HENRI FRANCOIS
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
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