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经营范围
发明名称
Impulse generator
摘要
申请公布号
US2477643(A)
申请公布日期
1949.08.02
申请号
US19450577439D
申请日期
1945.02.12
申请人
FEDERAL TELEPHONE AND RADIO CORPORATION
发明人
OSTLUND EVERT M.
分类号
H03K3/537
主分类号
H03K3/537
代理机构
代理人
主权项
地址
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