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发明名称
Adjustable paper roll support
摘要
申请公布号
US2107020(A)
申请公布日期
1938.02.01
申请号
US19370150086
申请日期
1937.06.24
申请人
VICTOR ADDING MACHINE COMPANY
发明人
WILLIAMS JOHN H.
分类号
B65H16/06
主分类号
B65H16/06
代理机构
代理人
主权项
地址
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