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发明名称
Improvements in buttons
摘要
申请公布号
GB540210(A)
申请公布日期
1941.10.09
申请号
GB19400000110
申请日期
1940.01.02
申请人
HENNING WALDEMAR LINDAHL
发明人
分类号
A44B1/24;B29C33/14;B29C43/18;B29C70/68;B29D19/00
主分类号
A44B1/24
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代理人
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