Rail detector controller for drawbridges,申请号US19480047101-传众专利搜索

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发明名称	Rail detector controller for drawbridges
摘要
申请公布号	US2575815(A)	申请公布日期	1951.11.20
申请号	US19480047101	申请日期	1948.08.31
申请人	WESTINGHOUSE AIR BRAKE COMPANY	发明人	JEFFERSON GLEN V.
分类号	B61L1/20	主分类号	B61L1/20
代理机构		代理人
主权项
地址

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