Improvements relating to photographic enlargers,申请号GB19490011528-传众专利搜索

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发明名称	Improvements relating to photographic enlargers
摘要
申请公布号	GB682071(A)	申请公布日期	1952.11.05
申请号	GB19490011528	申请日期	1949.04.29
申请人	THE PULLIN OPTICAL COMPANY LIMITED;WILHELM JACOB BAUMGARTNER;RAYMOND HUMPHREY GOSS	发明人
分类号	G03B27/68	主分类号	G03B27/68
代理机构		代理人
主权项
地址

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