Ball cam device,申请号US19380248017-传众专利搜索

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发明名称	Ball cam device
摘要
申请公布号	US2235011(A)	申请公布日期	1941.03.18
申请号	US19380248017	申请日期	1938.12.27
申请人	CHANEY LEONARD P	发明人	CHANEY LEONARD P.
分类号	G01R11/60;H01H43/06	主分类号	G01R11/60
代理机构		代理人
主权项
地址

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