Limited travel draft gear construction,申请号US19310571311-传众专利搜索

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发明名称	Limited travel draft gear construction
摘要
申请公布号	US1986380(A)	申请公布日期	1935.01.01
申请号	US19310571311	申请日期	1931.10.27
申请人	NATIONAL MAILEABLE AND STEEL CASTINGS COMPANY	发明人	SPENCE HUBERT L.
分类号	B61G9/04	主分类号	B61G9/04
代理机构		代理人
主权项
地址

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