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发明名称
Improvements in or relating to duplicating machines
摘要
申请公布号
GB823552(A)
申请公布日期
1959.11.11
申请号
GB19560012123
申请日期
1956.04.20
申请人
WILHELM RITZERFELD;GERHARD RITZERFELD
发明人
分类号
B41L21/10
主分类号
B41L21/10
代理机构
代理人
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地址
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