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发明名称
Manufacture of window envelopes
摘要
申请公布号
US1974098(A)
申请公布日期
1934.09.18
申请号
US19310520684
申请日期
1931.03.06
申请人
UNITED STATES ENVELOPE COMPANY
发明人
BECKER PETER;POPPENBURGER FRITZ
分类号
B31B19/00
主分类号
B31B19/00
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