Improvements in photographic slides for x-ray films,申请号GB19290027549-传众专利搜索

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发明名称	Improvements in photographic slides for x-ray films
摘要
申请公布号	GB339008(A)	申请公布日期	1930.12.04
申请号	GB19290027549	申请日期	1929.09.10
申请人	WILLIAM EDWARD SCHALL;SCHALL AND SON LIMITED	发明人
分类号	G03B42/04	主分类号	G03B42/04
代理机构		代理人
主权项
地址

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