Artificial ice rink employing modular units,申请号US19660522471-传众专利搜索

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发明名称	Artificial ice rink employing modular units
摘要
申请公布号	US3379031(A)	申请公布日期	1968.04.23
申请号	US19660522471	申请日期	1966.01.24
申请人	JOHN C. LEWIS JR.	发明人	JR. JOHN C. LEWIS,
分类号	E01C13/10	主分类号	E01C13/10
代理机构		代理人
主权项
地址

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