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经营范围
发明名称
Improvements in margin stops for typewriting machines and methods of making same
摘要
申请公布号
GB428311(A)
申请公布日期
1935.05.10
申请号
GB19330036422
申请日期
1933.12.27
申请人
ROYAL TYPEWRITER COMPANY, INC.
发明人
分类号
B41J29/50
主分类号
B41J29/50
代理机构
代理人
主权项
地址
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