Double-row roller bearing,申请号US19310577570-传众专利搜索

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发明名称	Double-row roller bearing
摘要
申请公布号	US1918677(A)	申请公布日期	1933.07.18
申请号	US19310577570	申请日期	1931.11.27
申请人	GUSTAF WINGQUIST SVEN	发明人	WINGQUIST SVEN GUSTAF
分类号	F16C19/38	主分类号	F16C19/38
代理机构		代理人
主权项
地址

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