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发明名称
Improvements in machine for rounding and jointing the backs of books
摘要
申请公布号
GB359780(A)
申请公布日期
1931.10.29
申请号
GB19300036505
申请日期
1930.12.03
申请人
CARL SCHRAMM
发明人
分类号
B42C13/00
主分类号
B42C13/00
代理机构
代理人
主权项
地址
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