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发明名称
Typewriting machine
摘要
申请公布号
US2179021(A)
申请公布日期
1939.11.07
申请号
US19370143186
申请日期
1937.05.17
申请人
JESSIE P. GRANDY;HENRY H. SNELLING
发明人
READ DAVID Y.
分类号
B41J11/24
主分类号
B41J11/24
代理机构
代理人
主权项
地址
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