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发明名称
WEAR RESISTANT CARRIAGE GUIDE RAIL FOR TYPEWRITER OR LIKE MACHINE, AND METHOD OF FORMING SAME
摘要
申请公布号
CA488261(A)
申请公布日期
1952.11.18
申请号
CAD488261
申请日期
申请人
ROYAL TYPEWRITER COMPANY
发明人
HENRY JOSEPH HART
分类号
主分类号
代理机构
代理人
主权项
地址
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