Automatic air-lift,申请号US19290395300-传众专利搜索

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发明名称	Automatic air-lift
摘要
申请公布号	US1824075(A)	申请公布日期	1931.09.22
申请号	US19290395300	申请日期	1929.09.26
申请人	CLUTHE WALTER J	发明人	CLUTHE WALTER J.
分类号	F04F1/18	主分类号	F04F1/18
代理机构		代理人
主权项
地址

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