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经营范围
发明名称
Improvements relating to covered buttons
摘要
申请公布号
GB812357(A)
申请公布日期
1959.04.22
申请号
GB19550018395
申请日期
1955.06.24
申请人
OTTO BERNING (JUNIOR);RUDOLF BERNING
发明人
分类号
A44B1/12
主分类号
A44B1/12
代理机构
代理人
主权项
地址
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