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发明名称
Method and apparatus for duplicating records
摘要
申请公布号
US2088175(A)
申请公布日期
1937.07.27
申请号
US19350047777
申请日期
1935.11.01
申请人
WILLHEM RITZERFELD
发明人
RITZERFELD WILLHEM
分类号
B41L11/00
主分类号
B41L11/00
代理机构
代理人
主权项
地址
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