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发明名称
Mechanical filters
摘要
申请公布号
US2717361(A)
申请公布日期
1955.09.06
申请号
US19510248011
申请日期
1951.09.24
申请人
COLLINS RADIO COMPANY
发明人
DOELZ MELVIN L.
分类号
H03H9/50
主分类号
H03H9/50
代理机构
代理人
主权项
地址
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