Automatic car coupler,申请号US19270224578-传众专利搜索

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发明名称	Automatic car coupler
摘要
申请公布号	US1827621(A)	申请公布日期	1931.10.13
申请号	US19270224578	申请日期	1927.10.07
申请人	JOHN A. ROBERTS	发明人	SHAFFER ORA C.
分类号	B61G3/04	主分类号	B61G3/04
代理机构		代理人
主权项
地址

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