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发明名称
Addendum sheet holder
摘要
申请公布号
US1844004(A)
申请公布日期
1932.02.09
申请号
US19290385798
申请日期
1929.08.14
申请人
BUCHAN HUGH G
发明人
BUCHAN HUGH G.
分类号
B42D3/18
主分类号
B42D3/18
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