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发明名称
Improvements in or relating to buttons
摘要
申请公布号
GB470416(A)
申请公布日期
1937.08.16
申请号
GB19360004554
申请日期
1936.02.14
申请人
FRITZ FUERSTENBERG
发明人
分类号
A44B1/28
主分类号
A44B1/28
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代理人
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