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发明名称
Typewriter
摘要
申请公布号
US1986244(A)
申请公布日期
1935.01.01
申请号
US19330702511
申请日期
1933.12.15
申请人
BATES LABORATORIES, INC.
发明人
BATES HARRY
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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