Testing device and method for railway traffic control apparatus,申请号US19520321403-传众专利搜索

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发明名称	Testing device and method for railway traffic control apparatus
摘要
申请公布号	US2740939(A)	申请公布日期	1956.04.03
申请号	US19520321403	申请日期	1952.11.19
申请人	WESTINGHOUSE AIR BRAKE COMPANY	发明人	SORENSEN ANDREW J.
分类号	B61L3/12	主分类号	B61L3/12
代理机构		代理人
主权项
地址

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