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经营范围
发明名称
Pulse modulator
摘要
申请公布号
US2485608(A)
申请公布日期
1949.10.25
申请号
US19430488128
申请日期
1943.05.24
申请人
THE SPERRY CORPORATION
发明人
KEIM DAVID Y.
分类号
H03K3/543
主分类号
H03K3/543
代理机构
代理人
主权项
地址
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