Ball bearing spacer,申请号US19330679246-传众专利搜索

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发明名称	Ball bearing spacer
摘要
申请公布号	US1974127(A)	申请公布日期	1934.09.18
申请号	US19330679246	申请日期	1933.07.06
申请人	SULLIVAN MICHAEL H	发明人	SULLIVAN MICHAEL H.
分类号	F16C33/42	主分类号	F16C33/42
代理机构		代理人
主权项
地址

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