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发明名称
Improvements in and relating to tracer mechanism for copying and reproducing machines
摘要
申请公布号
GB354393(A)
申请公布日期
1931.08.10
申请号
GB19310008850
申请日期
1930.05.10
申请人
CARLOS KREBS
发明人
分类号
B23K7/00
主分类号
B23K7/00
代理机构
代理人
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