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发明名称
Envelope
摘要
申请公布号
US2007891(A)
申请公布日期
1935.07.09
申请号
US19330699642
申请日期
1933.11.25
申请人
ROBERT W. ENGLEHART
发明人
DREISBACH ERNST
分类号
B65D27/14
主分类号
B65D27/14
代理机构
代理人
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