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发明名称
An improved device for facilitating the moistening and sealing of the gummed flaps of envelopes
摘要
申请公布号
GB504338(A)
申请公布日期
1939.04.24
申请号
GB19380029973
申请日期
1938.10.17
申请人
HAROLD GILL
发明人
分类号
B43M5/02
主分类号
B43M5/02
代理机构
代理人
主权项
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