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发明名称
Gelatin band shifting and tightening means for duplicating machines
摘要
申请公布号
US2220249(A)
申请公布日期
1940.11.05
申请号
US19390273263
申请日期
1939.05.12
申请人
DITTO, INCORPORATED
发明人
KROPP WILLIS A.
分类号
B41L9/08;B41L9/10
主分类号
B41L9/08
代理机构
代理人
主权项
地址
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