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经营范围
发明名称
Teletype apparatus
摘要
申请公布号
US2445780(A)
申请公布日期
1948.07.27
申请号
US19450571058
申请日期
1945.01.02
申请人
HARVILL TOM R;LEONARD SPERRY
发明人
HARVILL TOM R.;SPERRY LEONARD
分类号
H04L27/10
主分类号
H04L27/10
代理机构
代理人
主权项
地址
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