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发明名称
TYPEWRITING MACHINE
摘要
申请公布号
CA439328(A)
申请公布日期
1947.01.21
申请号
CAD439328
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
RICHARD VON REPPERT
分类号
主分类号
代理机构
代理人
主权项
地址
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