Mine car spring bumper and coupling,申请号US19370144606-传众专利搜索

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发明名称	Mine car spring bumper and coupling
摘要
申请公布号	US2190730(A)	申请公布日期	1940.02.20
申请号	US19370144606	申请日期	1937.05.25
申请人	AMERICAN CAR AND FOUNDRY COMPANY	发明人	PANCAKE HERMAN H.
分类号	B61G9/02	主分类号	B61G9/02
代理机构		代理人
主权项
地址

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