Improvements in or relating to display or amusement apparatus,申请号GB19490028855-传众专利搜索

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发明名称	Improvements in or relating to display or amusement apparatus
摘要
申请公布号	GB677453(A)	申请公布日期	1952.08.13
申请号	GB19490028855	申请日期	1949.11.10
申请人	MASSON SEELEY & CO., LIMITED	发明人	BRAND CHARLES WILLIAM
分类号	A63H33/22;G09F11/23	主分类号	A63H33/22
代理机构		代理人
主权项
地址

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