Photographic printing frame and mask,申请号GB19310009733-传众专利搜索

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发明名称	Photographic printing frame and mask
摘要
申请公布号	GB372900(A)	申请公布日期	1932.05.19
申请号	GB19310009733	申请日期	1931.03.31
申请人	ARTHUR EDWARD PURSLOVE	发明人
分类号	G03B27/28	主分类号	G03B27/28
代理机构		代理人
主权项
地址

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