Coupler and draft gear,申请号US19290343263-传众专利搜索

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发明名称	Coupler and draft gear
摘要
申请公布号	US1976786(A)	申请公布日期	1934.10.16
申请号	US19290343263	申请日期	1929.02.28
申请人	AMERICAN STEEL FOUNDRIES	发明人	KAYLER FRANK H.
分类号	B61G9/10	主分类号	B61G9/10
代理机构		代理人
主权项
地址

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