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发明名称
Condensed billing device
摘要
申请公布号
US1858729(A)
申请公布日期
1932.05.17
申请号
US19300459740
申请日期
1930.06.07
申请人
ROYAL TYPEWRITER COMPANY, INC.
发明人
DAVIDGE EBENEZER ALFRED
分类号
B41J11/36
主分类号
B41J11/36
代理机构
代理人
主权项
地址
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