Magnetic fluid coupling device,申请号US19490133723-传众专利搜索

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发明名称	Magnetic fluid coupling device
摘要
申请公布号	US2643748(A)	申请公布日期	1953.06.30
申请号	US19490133723	申请日期	1949.12.19
申请人	WHITE JR PAUL H	发明人	JR. PAUL H. WHITE,
分类号	F15B21/06;F16D33/18	主分类号	F15B21/06
代理机构		代理人
主权项
地址

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