Railway track circuit apparatus,申请号US19630320864-传众专利搜索

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发明名称	Railway track circuit apparatus
摘要
申请公布号	US3287554(A)	申请公布日期	1966.11.22
申请号	US19630320864	申请日期	1963.11.01
申请人	WESTINGHOUSE AIR BRAKE COMPANY	发明人	STAPLES CRAWFORD E.
分类号	B61L1/18;H01H53/10	主分类号	B61L1/18
代理机构		代理人
主权项
地址

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