Railway switch mechanism,申请号US19330700397-传众专利搜索

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发明名称	Railway switch mechanism
摘要
申请公布号	US2031513(A)	申请公布日期	1936.02.18
申请号	US19330700397	申请日期	1933.12.01
申请人	THORN CHARLES C	发明人	THORN CHARLES C.
分类号	B61L5/10	主分类号	B61L5/10
代理机构		代理人
主权项
地址

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