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发明名称
Digital expansion circuit
摘要
申请公布号
US3011164(A)
申请公布日期
1961.11.28
申请号
US19570674198
申请日期
1957.07.25
申请人
RESEARCH CORPORATION
发明人
GERHARDT ROBERT H.
分类号
G09G1/04;G09G1/22
主分类号
G09G1/04
代理机构
代理人
主权项
地址
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