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发明名称
Auswechselbarer Absatz
摘要
申请公布号
DE518875(C)
申请公布日期
1931.02.20
申请号
DED518875D
申请日期
1930.03.27
申请人
ERICH GRAUERT
发明人
分类号
A43B21/37
主分类号
A43B21/37
代理机构
代理人
主权项
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