CIRCUITRY FOR CHECKING RAIL CONTINUITY,申请号USD3457402-传众专利搜索

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发明名称	CIRCUITRY FOR CHECKING RAIL CONTINUITY
摘要
申请公布号	US3457402(A)	申请公布日期	1969.07.22
申请号	USD3457402	申请日期	1967.10.06
申请人	JOHN JOYCE	发明人	JOHN JOYCE
分类号	B61L23/04;B61L23/16;(IPC1-7):B61L23/04	主分类号	B61L23/04
代理机构		代理人
主权项
地址

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