Automatic tank switching device,申请号US19540471223-传众专利搜索

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发明名称	Automatic tank switching device
摘要
申请公布号	US2780231(A)	申请公布日期	1957.02.05
申请号	US19540471223	申请日期	1954.11.26
申请人	WESTMORELAND EARNEST E	发明人	WESTMORELAND EARNEST E.
分类号	B67D7/36;B67D7/78;F16K21/18;G05D9/12	主分类号	B67D7/36
代理机构		代理人
主权项
地址

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