Improvements in electric toy railway tracks,申请号GB19310016253-传众专利搜索

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发明名称	Improvements in electric toy railway tracks
摘要
申请公布号	GB365470(A)	申请公布日期	1932.01.21
申请号	GB19310016253	申请日期	1931.06.04
申请人	FRIEDRICH OTTENSTEIN	发明人
分类号	A63H19/32	主分类号	A63H19/32
代理机构		代理人
主权项
地址

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