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发明名称
TYPEWRITER
摘要
申请公布号
CA543956(A)
申请公布日期
1957.07.23
申请号
CAD543956
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
JOHN E. HICKERSON
分类号
主分类号
代理机构
代理人
主权项
地址
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