Improvements relating to oil or liquid sealing devices for shafts,申请号GB19460031447-传众专利搜索

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发明名称	Improvements relating to oil or liquid sealing devices for shafts
摘要
申请公布号	GB618347(A)	申请公布日期	1949.02.21
申请号	GB19460031447	申请日期	1946.10.23
申请人	WILLIAM DOUGLAS WASHBOURNE	发明人
分类号	F16J15/34	主分类号	F16J15/34
代理机构		代理人
主权项
地址

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