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发明名称
Stop positioning mechanism for typewriters
摘要
申请公布号
US2650687(A)
申请公布日期
1953.09.01
申请号
US19480029253
申请日期
1948.05.26
申请人
UNDERWOOD CORPORATION
发明人
HELMOND WILLIAM F.
分类号
B41J25/18
主分类号
B41J25/18
代理机构
代理人
主权项
地址
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