Rotary pump,申请号US19480056489-传众专利搜索

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发明名称	Rotary pump
摘要
申请公布号	US2537349(A)	申请公布日期	1951.01.09
申请号	US19480056489	申请日期	1948.10.26
申请人	JOHNSON JAMES P	发明人	JOHNSON JAMES P.
分类号	F04C2/348	主分类号	F04C2/348
代理机构		代理人
主权项
地址

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