PASSENGER TICKET CHECKING SYSTEM,申请号CAD838856-传众专利搜索

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发明名称	PASSENGER TICKET CHECKING SYSTEM
摘要
申请公布号	CA838856(A)	申请公布日期	1970.04.07
申请号	CAD838856	申请日期
申请人	ADVANCE DATA SYSTEMS CORPORATION	发明人	ROBERT DELL;JOHN B. CREWS
分类号		主分类号
代理机构		代理人
主权项
地址

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