RAILWAY TRACK SKATES,申请号CAD489682-传众专利搜索

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发明名称	RAILWAY TRACK SKATES
摘要
申请公布号	CA489682(A)	申请公布日期	1953.01.13
申请号	CAD489682	申请日期
申请人	THE UNION SWITCH AND SIGNAL COMPANY	发明人	HERBERT L. BONE
分类号		主分类号
代理机构		代理人
主权项
地址

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