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发明名称
An improvement in the manufacture of envelopes
摘要
申请公布号
GB367252(A)
申请公布日期
1932.02.18
申请号
GB19310013735
申请日期
1931.05.09
申请人
ERNEST ALBERT ROWNTREE
发明人
分类号
B65D27/22
主分类号
B65D27/22
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代理人
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