WATER LEVEL PROBE,申请号GB19900004693-传众专利搜索

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发明名称	WATER LEVEL PROBE
摘要
申请公布号	GB9004693(D0)	申请公布日期	1990.04.25
申请号	GB19900004693	申请日期	1990.03.02
申请人	SOLINST CANADA LIMITED	发明人
分类号	E21B47/04;E21B47/10;G01F23/24	主分类号	E21B47/04
代理机构		代理人
主权项
地址

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