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经营范围
发明名称
Canceling and dating device
摘要
申请公布号
US2641182(A)
申请公布日期
1953.06.09
申请号
US19490123565
申请日期
1949.10.26
申请人
KOFFSKI JOHN H
发明人
KOFFSKI JOHN H.
分类号
B41K1/22;B41K1/42
主分类号
B41K1/22
代理机构
代理人
主权项
地址
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