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发明名称
Printing mechanism
摘要
申请公布号
US2199561(A)
申请公布日期
1940.05.07
申请号
US19380194028
申请日期
1938.03.05
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
FULLER FREDERICK L.;BEATTIE HORACE S.
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