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发明名称
Typewriting machine
摘要
申请公布号
US2099810(A)
申请公布日期
1937.11.23
申请号
US19360073023
申请日期
1936.04.06
申请人
ROYAL TYPEWRITER COMPANY, INC.
发明人
KHALIL SEYED
分类号
B41J7/02
主分类号
B41J7/02
代理机构
代理人
主权项
地址
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