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发明名称
Overdraft and signal printing mechanism for calculating machines
摘要
申请公布号
US1819067(A)
申请公布日期
1931.08.18
申请号
US19290397306
申请日期
1929.10.04
申请人
ELLIS ADDING TYPEWRITER COMPANY
发明人
BERNAU FREDERICK W.
分类号
G06C11/04
主分类号
G06C11/04
代理机构
代理人
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