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发明名称
Improvements in typewriters and escapement mechanisms therefor
摘要
申请公布号
GB806053(A)
申请公布日期
1958.12.17
申请号
GB19550033073
申请日期
1955.11.18
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
B41J19/58
主分类号
B41J19/58
代理机构
代理人
主权项
地址
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