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发明名称
Roll supporting typewriter attachment
摘要
申请公布号
US2512200(A)
申请公布日期
1950.06.20
申请号
US19470787443
申请日期
1947.11.21
申请人
DUNCAN MORRIS C
发明人
DUNCAN MORRIS C.
分类号
B41J15/14
主分类号
B41J15/14
代理机构
代理人
主权项
地址
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