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发明名称
Improvements in and relating to hollanders
摘要
申请公布号
GB356426(A)
申请公布日期
1931.09.10
申请号
GB19300024244
申请日期
1930.08.13
申请人
HELMUTH BANNING
发明人
分类号
D21D1/02
主分类号
D21D1/02
代理机构
代理人
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