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发明名称
Lapping device
摘要
申请公布号
US2485705(A)
申请公布日期
1949.10.25
申请号
US19460671762
申请日期
1946.05.23
申请人
CELANESE CORPORATION
发明人
CROFT CYRIL M.;BERGERON ALVIN W.;DODGE FREDERICK G.
分类号
B65H23/02
主分类号
B65H23/02
代理机构
代理人
主权项
地址
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