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发明名称
Upper feed roll control means for typewriting and like machines
摘要
申请公布号
US2746590(A)
申请公布日期
1956.05.22
申请号
US19520325466
申请日期
1952.12.11
申请人
UNDERWOOD CORPORATION
发明人
LEMOS MANUEL G.
分类号
B41J13/20
主分类号
B41J13/20
代理机构
代理人
主权项
地址
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