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发明名称
Typing impression control for typewriters
摘要
申请公布号
US3077255(A)
申请公布日期
1963.02.12
申请号
US19600041854
申请日期
1960.07.11
申请人
SPERRY RAND CORPORATION
发明人
COELMAN RUSSELL E.;ISRAELSON EVERT G.
分类号
B41J7/94
主分类号
B41J7/94
代理机构
代理人
主权项
地址
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