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发明名称
Improvements in or relating to buttons
摘要
申请公布号
GB485446(A)
申请公布日期
1938.05.19
申请号
GB19370024530
申请日期
1937.09.08
申请人
FRITZ FUERSTENBERG
发明人
分类号
A44B1/12
主分类号
A44B1/12
代理机构
代理人
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