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发明名称
Type-action-controlled varied letter feed
摘要
申请公布号
US2664987(A)
申请公布日期
1954.01.05
申请号
US19510257561
申请日期
1951.11.21
申请人
UNDERWOOD CORPORATION
发明人
SCHRODER CHARLES
分类号
B41J19/32
主分类号
B41J19/32
代理机构
代理人
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地址
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