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发明名称
Case shift mechanism for typewriters and like machines
摘要
申请公布号
US2569668(A)
申请公布日期
1951.10.02
申请号
US19490131824
申请日期
1949.12.08
申请人
UNDERWOOD CORPORATION
发明人
HELMOND WILLIAM F.
分类号
B41J29/10
主分类号
B41J29/10
代理机构
代理人
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地址
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