Reversal type electroscopic developer powder,申请号US19580724522-传众专利搜索

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发明名称	Reversal type electroscopic developer powder
摘要
申请公布号	US2986521(A)	申请公布日期	1961.05.30
申请号	US19580724522	申请日期	1958.03.28
申请人	RADIO CORPORATION OF AMERICA	发明人	WIELICKI HENRY
分类号	G03G9/08;G03G9/097	主分类号	G03G9/08
代理机构		代理人
主权项
地址

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