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发明名称
Conversion systems
摘要
申请公布号
US2828482(A)
申请公布日期
1958.03.25
申请号
US19560585009
申请日期
1956.05.15
申请人
SPERRY RAND CORPORATION
发明人
SCHUMANN ROBERT W.
分类号
H03M1/00
主分类号
H03M1/00
代理机构
代理人
主权项
地址
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