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发明名称
Frequency responsive apparatus
摘要
申请公布号
US3213197(A)
申请公布日期
1965.10.19
申请号
US19620185064
申请日期
1962.04.04
申请人
SPERRY RAND CORPORATION
发明人
HAWKINS ROBERT D.
分类号
G01H9/00;G02B6/04;H03H9/46
主分类号
G01H9/00
代理机构
代理人
主权项
地址
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