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发明名称
Transfer device
摘要
申请公布号
US1894137(A)
申请公布日期
1933.01.10
申请号
US19290398447
申请日期
1929.10.09
申请人
MCMILLAN BOOK COMPANY
发明人
UNGER PAUL O.
分类号
B42F9/00
主分类号
B42F9/00
代理机构
代理人
主权项
地址
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