Double acting vacuum pump,申请号US19380198380-传众专利搜索

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发明名称	Double acting vacuum pump
摘要
申请公布号	US2189526(A)	申请公布日期	1940.02.06
申请号	US19380198380	申请日期	1938.03.28
申请人	GENERAL MOTORS CORPORATION	发明人	BABITCH ABRAHAM M.
分类号	F02M37/04;F02M37/14;F02M59/14;F04B35/00	主分类号	F02M37/04
代理机构		代理人
主权项
地址

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