Scale model highway-railroad crossing,申请号US19540405299-传众专利搜索

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发明名称	Scale model highway-railroad crossing
摘要
申请公布号	US2804543(A)	申请公布日期	1957.08.27
申请号	US19540405299	申请日期	1954.01.21
申请人	PETRICK SR EMILION J	发明人	SR. EMILION J. PETRICK,
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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