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发明名称
Improvements in memorandum appliances
摘要
申请公布号
GB561746(A)
申请公布日期
1944.06.02
申请号
GB19420015231
申请日期
1942.10.30
申请人
JOHN CHARLES SIDNEY BRANSON
发明人
分类号
B42D19/00
主分类号
B42D19/00
代理机构
代理人
主权项
地址
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