Pneumatically actuated pumping system,申请号US19290401788-传众专利搜索

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发明名称	Pneumatically actuated pumping system
摘要
申请公布号	US1839140(A)	申请公布日期	1931.12.29
申请号	US19290401788	申请日期	1929.10.23
申请人	BUTLER CHARLES A	发明人	BUTLER CHARLES A.
分类号	F04F1/12	主分类号	F04F1/12
代理机构		代理人
主权项
地址

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