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发明名称
EASY-OPENING ENVELOPE
摘要
申请公布号
CA395024(A)
申请公布日期
1941.03.04
申请号
CAD395024
申请日期
申请人
UNITED STATES ENVELOPE COMPANY
发明人
DANIEL MORGAN SKEINS
分类号
主分类号
代理机构
代理人
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地址
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