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摘要
申请公布号
US2294645(A)
申请公布日期
1942.09.01
申请号
US19410406121
申请日期
1941.08.09
申请人
INTERCHEMICAL CORPORATION
发明人
JR. FRANCIS LEWIS WURZBURG,
分类号
G03F1/00;H04N1/036;H04N1/405
主分类号
G03F1/00
代理机构
代理人
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