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发明名称
Marking device
摘要
申请公布号
US2012990(A)
申请公布日期
1935.09.03
申请号
US19340755345
申请日期
1934.11.30
申请人
CHOATE FRED C
发明人
CHOATE FRED C.
分类号
G09F3/12;G09F3/20
主分类号
G09F3/12
代理机构
代理人
主权项
地址
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