Miniature or toy railroad track,申请号US19470724647-传众专利搜索

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发明名称	Miniature or toy railroad track
摘要
申请公布号	US2637501(A)	申请公布日期	1953.05.05
申请号	US19470724647	申请日期	1947.01.27
申请人	JOYCE HAROLD L	发明人	JOYCE HAROLD L.
分类号	A63H19/30	主分类号	A63H19/30
代理机构		代理人
主权项
地址

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