Friction draft gear,申请号US19320591414-传众专利搜索

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发明名称	Friction draft gear
摘要
申请公布号	US1935879(A)	申请公布日期	1933.11.21
申请号	US19320591414	申请日期	1932.02.06
申请人	HERNDON HENRY A	发明人	HERNDON HENRY A.
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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