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发明名称
Mask structure
摘要
申请公布号
US2341702(A)
申请公布日期
1944.02.15
申请号
US19430472515
申请日期
1943.01.15
申请人
EDWARD DUGGAN JAMES
发明人
DUGGAN JAMES EDWARD
分类号
B05B15/04
主分类号
B05B15/04
代理机构
代理人
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