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经营范围
发明名称
MONOLITHISCH KRISTALFILTER.
摘要
申请公布号
NL162523(B)
申请公布日期
1979.12.17
申请号
NL19710011061
申请日期
1971.08.11
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED, NEW YORK.
发明人
分类号
H03H9/56;(IPC1-7):H03H9/20
主分类号
H03H9/56
代理机构
代理人
主权项
地址
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