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发明名称
Serving devices
摘要
申请公布号
GB520018(A)
申请公布日期
1940.04.11
申请号
GB19390012237
申请日期
1939.04.24
申请人
LOUIS ANTON LEPPKE
发明人
分类号
A47G19/06
主分类号
A47G19/06
代理机构
代理人
主权项
地址
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