Method of changing engine oil,申请号US20030668070-传众专利搜索

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发明名称	Method of changing engine oil
摘要	A method for converting an engine from petroleum based engine oil to synthetic oil, whereby substantially all petroleum based engine oil is removed prior to replacement with synthetic engine oil.
申请公布号	US7207417(B2)	申请公布日期	2007.04.24
申请号	US20030668070	申请日期	2003.09.22
申请人	BLOUNT JOHN	发明人	BLOUNT JOHN
分类号	F16C1/14;F01M7/00;F16C3/14	主分类号	F16C1/14
代理机构		代理人
主权项
地址

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