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发明名称
Typewriting machine
摘要
申请公布号
US1748172(A)
申请公布日期
1930.02.25
申请号
US19270163999
申请日期
1927.01.27
申请人
KARL GOMMEL
发明人
GOMMEL KARL
分类号
B41J1/32
主分类号
B41J1/32
代理机构
代理人
主权项
地址
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