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发明名称
Typing machine
摘要
申请公布号
US2986256(A)
申请公布日期
1961.05.30
申请号
US19590801513
申请日期
1959.03.24
申请人
WEAVER VANCE W
发明人
WEAVER VANCE W.
分类号
B41J7/90
主分类号
B41J7/90
代理机构
代理人
主权项
地址
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