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经营范围
发明名称
Tape perforator
摘要
申请公布号
US2042788(A)
申请公布日期
1936.06.02
申请号
US19330678632
申请日期
1933.07.01
申请人
TELETYPE CORPORATION
发明人
KRUM HOWARD L.
分类号
H04L17/20
主分类号
H04L17/20
代理机构
代理人
主权项
地址
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