Railway signal and/or point control equipment,申请号US19380209198-传众专利搜索

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发明名称	Railway signal and/or point control equipment
摘要
申请公布号	US2241906(A)	申请公布日期	1941.05.13
申请号	US19380209198	申请日期	1938.05.21
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	GRIFFITHS JOHN BALMAIN;BROWN ANDREW
分类号	B61L19/06	主分类号	B61L19/06
代理机构		代理人
主权项
地址

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