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发明名称
Power actuated typewriter
摘要
申请公布号
US1921159(A)
申请公布日期
1933.08.08
申请号
US19250054039
申请日期
1925.09.02
申请人
WOODSTOCK TYPEWRITER COMPANY
发明人
HOKANSON OTTO A.
分类号
主分类号
代理机构
代理人
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