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摘要
申请公布号
GB913995(A)
申请公布日期
1962.12.28
申请号
GB19590010091
申请日期
1959.03.24
申请人
DAVID KAHN
发明人
分类号
B44F1/04
主分类号
B44F1/04
代理机构
代理人
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