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发明名称
Typewriter margin justifier
摘要
申请公布号
US2303686(A)
申请公布日期
1942.12.01
申请号
US19400332129
申请日期
1940.04.29
申请人
EDISON JOHN S
发明人
EDISON JOHN S.
分类号
B41J29/42
主分类号
B41J29/42
代理机构
代理人
主权项
地址
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