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发明名称
Strip-perforating machine
摘要
申请公布号
US1782570(A)
申请公布日期
1930.11.25
申请号
US19270203789
申请日期
1927.07.06
申请人
THE BELL & HOWELL COMPANY
发明人
HOWELL ALBERT S.
分类号
B26D1/22;B26F1/00
主分类号
B26D1/22
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