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摘要
申请公布号
US2044201(A)
申请公布日期
1936.06.16
申请号
US19300419935
申请日期
1930.01.10
申请人
VEEDER-ROOT, INCORPORATED
发明人
BLISS HARVEY N.
分类号
B41J29/20
主分类号
B41J29/20
代理机构
代理人
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