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发明名称
Power operating mechanism for typewriting machines
摘要
申请公布号
US2453287(A)
申请公布日期
1948.11.09
申请号
US19440557635
申请日期
1944.10.07
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
REPPERT RICHARD VON
分类号
B41J23/12
主分类号
B41J23/12
代理机构
代理人
主权项
地址
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