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发明名称
Ribbon feed mechanism for printing telegraph machines
摘要
申请公布号
US2239712(A)
申请公布日期
1941.04.29
申请号
US19380187214
申请日期
1938.01.27
申请人
PARMER HARRY W;LOUISE GRAHAM NAN
发明人
PARMER HARRY W.;GRAHAM NAN LOUISE
分类号
H04L13/06
主分类号
H04L13/06
代理机构
代理人
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