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发明名称
Noiseless typewriter action
摘要
申请公布号
US1952192(A)
申请公布日期
1934.03.27
申请号
US19310566483
申请日期
1931.10.02
申请人
L C SMITH & CORONA TYPEWRITERS INC.
发明人
ATTI RAPHAEL
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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