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发明名称
Improvements in book-sewing machines
摘要
申请公布号
GB635588(A)
申请公布日期
1950.04.12
申请号
GB19470019143
申请日期
1947.07.17
申请人
WILLIAM ARTHUR HOPKINSON AULD;JOHN THOMAS AULD
发明人
分类号
B42B2/02
主分类号
B42B2/02
代理机构
代理人
主权项
地址
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