Improved scraper and valve control,申请号GB19970011542-传众专利搜索

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发明名称	Improved scraper and valve control
摘要
申请公布号	GB9711542(D0)	申请公布日期	1997.07.30
申请号	GB19970011542	申请日期	1997.06.04
申请人	HUTCHON, NATHAN	发明人
分类号	A47L1/16;B60S3/04;B67D7/50	主分类号	A47L1/16
代理机构		代理人
主权项
地址

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