Dental x-ray film holder,申请号US19400352531-传众专利搜索

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发明名称	Dental x-ray film holder
摘要
申请公布号	US2240336(A)	申请公布日期	1941.04.29
申请号	US19400352531	申请日期	1940.08.14
申请人	KREIDER RAYMOND L	发明人	KREIDER RAYMOND L.
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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