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发明名称
KEYBOARD-OPERATED TYPEWRITER
摘要
申请公布号
GB1216173(A)
申请公布日期
1970.12.16
申请号
GB19690003829
申请日期
1969.01.23
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
B41J25/20;B41J29/26
主分类号
B41J25/20
代理机构
代理人
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