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发明名称
Developing apparatus
摘要
申请公布号
US1809822(A)
申请公布日期
1931.06.16
申请号
US19270228719
申请日期
1927.10.26
申请人
EUGENE DIETZGEN COMPANY
发明人
ALLIN RICHARD FRED
分类号
G03D7/00
主分类号
G03D7/00
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代理人
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