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发明名称
Mechanical filter
摘要
申请公布号
US2605354(A)
申请公布日期
1952.07.29
申请号
US19490082834
申请日期
1949.03.22
申请人
RADIO CORPORATION OF AMERICA
发明人
JR. LESLIE L. BURNS,;ROBERTS WALTER VAN B.
分类号
H03H9/52
主分类号
H03H9/52
代理机构
代理人
主权项
地址
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