Device for testing light-sensitive materials,申请号US19290366465-传众专利搜索

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发明名称	Device for testing light-sensitive materials
摘要
申请公布号	US1765198(A)	申请公布日期	1930.06.17
申请号	US19290366465	申请日期	1929.05.27
申请人	ALFRED BAUER	发明人	BAUER ALFRED
分类号	H01J40/00	主分类号	H01J40/00
代理机构		代理人
主权项
地址

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