Sidehill steering attachment for tractors,申请号US19380229118-传众专利搜索

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发明名称	Sidehill steering attachment for tractors
摘要
申请公布号	US2220361(A)	申请公布日期	1940.11.05
申请号	US19380229118	申请日期	1938.09.09
申请人	WESTPHAL EDWARD E	发明人	WESTPHAL EDWARD E.
分类号	B62D7/00	主分类号	B62D7/00
代理机构		代理人
主权项
地址

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